INFECTION PREVENTION AND
CONTROL MANUAL
AUTHORS:
Name:
Chris Sharp
Job Title:
Matron Infection Prevention and Control,
Cambridgeshire Community Services
Name:
Lynn Rodrigues
Job Title:
Matron Infection Prevention and Control,
NHS Cambridgeshire
Name:
Clare Nathan
Job Title:
Infection Prevention and Control Nurse,
Cambridgeshire Community Services
Name:
Aileen Wilson
Job Title:
Modern Matron Infection Prevention and Control
Cambridge and Peterborough NHS Foundation Trust
KEY DIRECTORS
Name:
Tim Bryson
Job Title:
Director of Children’s Services and Nursing
RATIFIED BY
Forum:
Healthcare Governance Committee
1 December 2008
IMPLEMENTATION
Date:
December 2008
REVIEW
Date:
November 2009
Signed on behalf of the Trust
: ………………………………
Karen Bell, Chief Executive
Elizabeth House, Fulbourn Hospital, Fulbourn, Cambs CB21 5EF Phone: 01223 726789
ACKNOWLEDGEMENTS
Consultant in Communicable Disease Control,
Dr Bernadette Nazareth
Public Health Protection Unit, Health Protection
Agency
Infection Control Doctor Consultant Microbiologist
Dr Nick Brown
HPA
Infection Control Specialist Nurse,
Lynn Franklin
Peterborough and Stamford Hospitals NHS
Foundation Trust
2
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CONTENTS
SECTION 1: General Information .......................................................................................... 4
1.1 Introduction .................................................................................................................. 4
1.2 Notifiable Diseases ...................................................................................................... 4
1.3 Contact Information ..................................................................................................... 6
1.4 Precautions Required for Infectious Diseases ............................................................. 8
SECTION 2: Management Arrangements for Infection Prevention and Control ................... 14
2.1 Introduction ................................................................................................................ 14
2.2 Duties and Responsibilities ........................................................................................ 14
2.3 Assurance ................................................................................................................. 16
2.4 Infection Prevention and Control Training .................................................................. 16
2.5 Manadatory Reporting of Healthcare Associated Infections ....................................... 16
2.6 Dissemination of Information ..................................................................................... 17
2.7 Monitoring and Compliance ....................................................................................... 17
SECTION 3: Infection Control ............................................................................................. 18
3.1 Standard Infection Control Precautions ..................................................................... 18
3.2 Hand Decontamination .............................................................................................. 19
3.3 Personal Protective equipment (PPE) ........................................................................ 22
3.4 Aseptic Technique ..................................................................................................... 24
3.5 Sharps Management ................................................................................................. 25
3.6 Innoculation Injuries, Blood Cantamination and Post Exposure Prophylaxis (PEP) .... 27
3.7 Management of laboratory specimens ....................................................................... 28
3.8 Storage, Distribution and Disposal of Vaccines ......................................................... 33
3.9 Dealing with Spillages................................................................................................ 35
3.10 Waste Segregation .................................................................................................. 37
3.11 Decontamination (Cleaning, Disinfection and Sterilisation of Equipment) ................ 43
SECTION 4 - Disease related Information ........................................................................... 54
4.1 Blood Borne Viruses .................................................................................................. 54
4.2 Meningococcal Meningitis/Septicaemia ..................................................................... 60
4.3 Creutzfeldt-Jakob disease and variant Creutzfeldt-Jakob disease (CJD & vCJD) ...... 64
4.4 Tuberculosis .............................................................................................................. 66
4.5 Gastro-Intestinal Diseases ......................................................................................... 70
4.6 Methiillin-Resistant Staphylococcus Aureus (MRSA) ................................................. 73
4.7 Scabies, Headlice and Worms ................................................................................... 78
4.8 Management of Clostridium Difficile Policy ................................................................ 86
SECTION 5 : Outbreaks ...................................................................................................... 93
5.1 Introduction and Purpose ........................................................................................... 93
5.2 Definitions .................................................................................................................. 93
5.3 Closure of a ward/department .................................................................................... 93
5.4 Reopening the Ward .................................................................................................. 94
SECTION 6 - Quality Issues and audit tools ........................................................................ 95
6.1 Standard Setting, Audit and Clinical Governance ...................................................... 95
3
SECTION 1: GENERAL INFORMATION
1.1 INTRODUCTION
Preface
Infection prevention and control is the responsibility of all staff.
At any one time
approximately one in ten patients in acute hospitals has a Healthcare Associated Infection
(HCAI). Patients who have a HCAI are likely to stay in hospital 2.5 times as long as an
uninfected patient, an average of 11 days. Patients with a HCAI incur increased healthcare
costs for the healthcare provider.
The death rate is higher for patients who have a HCAI during the in-patient period.
Although not all HCAIs are life threatening the symptoms may cause pain and discomfort
and treatment may involve a long course of antibiotic treatment. Any of these can reduce
quality of life.
This manual provides the basic information that staff need for effective infection control
within the Trust and serves as a basis for best practice.
At all times the guidelines in the manual represent the core approach to infection prevention
and control for the organisation. Additional clinical information can be found in the Royal
Marsden Hospital Manual of Clinical Nursing Procedures.
The Infection Prevention and Control Team (IPCT) are responsible for the practical aspects
of infection control. The IPCN team can be contacted by telephone or e mail during normal
working hours. The microbiology service includes 24 hour advice and this can be accessed
via the acute hospital switchboard.
Each department should have an Infection Control link staff with whom the ICT liaise. Link
staff will provide advice on the infection control guidelines devised in specific areas and will
assist the clinical team to use the policies in this manual.
Reference:
Plowman et al (1999)
Socio-economic Burden of Hospital Acquired Infection London: Public
Health Laboratory Service
1.2 NOTIFIABLE DISEASES
1.2.1 Statuary Notification
Infectious diseases, which are listed in tables A and B, whether confirmed or
suspected, must be notified to the Consultant for Communicable Disease Control
(CCDC) by the attending doctor.
Prompt notification and reporting of disease is essential. The objectives of notification are:
1. To collect accurate and complete epidemiological information on the disease.
2. To ensure prompt and appropriate control measures to prevent the spread of infection.
Any doctor who considers that a patient is suffering from a notifiable disease (see Section
1.3) has a statutory duty to notify the Proper Officer (Consultant in Communicable Disease
Control) of the local authority using the standard notification procedure.
Table A - Diseases Notifiable under the Public Health (Control of Disease) Act 1984:
Cholera
Relapsing Fever
Food Poisoning
Smallpox
Plague
Typhus
Table B - Diseases Notifiable under the Public Health (Infectious Diseases)
Regulations 1988:
Acute Encephalitis
Ophthalmia
Neonatorum
Acute Poliomyelitis
Paratyphoid Fever
Anthrax
Rabies
Diphtheria
Rubella
Dysentery (amoebic or bacillary)
Scarlet Fever
Leprosy
Tetanus
Leptospirosis
Tuberculosis
Malaria
Typhoid Fever
Measles
Viral Haemorrhagic Fever
Meningitis
Viral Hepatitis
Meningococcal Septicaemia (without meningitis)
Whooping Cough
Mumps
Yellow Fever
Table C - Non-Statutory Notifiable Diseases
It has been agreed that although the following diseases are not statutorily notifiable,
the Consultant in Communicable Disease Control should be informed of their
occurrence:
• AIDS
• Legionnaires’ Disease
• Listeriosis
• Psittacosis
• CJD
• SARS
1.3 CONTACT INFORMATION
INFECTION PREVENTION AND CONTROL NURSES (Provider Organisations)
Aileen Wilson – Infection Control & Prevention Lead
Ann Hiles - Trust Nurse Lead
01223 726789
Wendy Llaneza – Healthcare Governance Senior Manager
Tim Bryson – Director of Infection Prevention & Control
For out of hours Infection Control advice - please contact the on-call microbiologist
via the acute hospital switchboard.
HEALTH PROTECTION UNIT (NSE HP UNIT)
Cambridgeshire and Peterborough
Health Protection Unit – Administration
Dr Bernadette Nazareth
Consultant in Communicable Disease Control
Dr Kate King
01480 398500
Health Protection Medical Specialist
Gillian Clark
Health Protection Nurse Specialist
Audrey Pepperman
Health Protection Nurse Specialist
Emergency contact out of hours via Medicom 01603 481221
LABORATORIES (MICROBIOLOGY)
Addenbrookes Hospital
01223 257035 / 257057
Hinchingbrooke Hospital
01480 416416
Papworth Hospital
01480 364321
Peterborough and Stamford Hospital
01733 874657
Queen Elizabeth Hospital, Kings Lynn
01553 613772
ENVIRONMENTAL HEALTH DEPARTMENTS
Cambridge City
01223 457000
Environmental Health Department
South Cambridgeshire
08450 450500
Environmental Health Department
East Cambridgeshire
01353 665555
Environmental Health Department
Fenland
Environmental Health Department
01354 654321
Peterborough Unitary Authority
Environmental Health Department
01733 747474
DEPARTMENTS OF GENITO-URINARY MEDICINE
Addenbrooke’s Hospital
01223 217239/
01223 217774
Peterborough Hospital
01733 314666/
01733 874949
Hinchingbrooke Hospital
01480 416461
Out of hours service not available
ACUTE INFECTION CONTROL TEAMS
Addenbrooke’s Hospital, Cambridge
01223 217497
Peterborough District Hospital
01733 874164
Hinchingbrooke Hospital, Huntingdon
01480 416160
Queen Elizabeth Hospital, Kings Lynn
01553 613613
OCCUPATIONAL HEALTH DEPARTMENTS
Anglia Support Partnership, Swan House, Gloucester Centre, 01733 316519
Peterborough
Hinchingbrooke Hospital, Huntingdon (Hunts area only)
01480 416263
1.4 PRECAUTIONS REQUIRED FOR INFECTIOUS DISEASES
This Section is to enable you to manage patients with an infectious disease. They are a
guideline only and if you have any queries please contact the Infection Control Team.
These precautions are in addition to Standard Infection Control Precautions Section …….
CATEGORY
OF STATUTORY
DISEASE
COMMENTS
ISOLATION
NOTIFICATION
Agranulocytosis
Protective
NO
Anthrax
High
Security Yes
DO NOT ADMIT to
(Pulmonary)
Isolation Hospital
District
General
Hospital
Anthrax
Source
Yes
(Cutaneous)
Aspergillosis
None
NO
Beta-haemolytic
NO
Until testing negative
streptococcus:
or
24
hours
of
Group
A
(not Source
appropriate antibiotic
throat)
Source
treatment.
Group
B
(only
SCBU
and
neonates)
Bronchiolitis
in Source
NO
Until clinically well
infants
Brucellosis
None
NO
Burns-extensive
Protective
NO
non-infected
Campylobacter
Enteric
Yes
Until symptom free.
enteritis
Staff sufferers should
contact Occupational
Health.
Chickenpox
Source
Yes
Until lesions are dry
(Varicella
Zoster
(normally 7 days from
Virus)
start
of
eruptions).
Exclude
staff
and
others who are not
immune.
Cholera
Enteric
Yes
Clostridium difficile
Enteric
NO
Please refer to policy
Cryptosporidiosis
Enteric
NO
Until symptom free.
Cytomegalovirus
None
NO
Risk
to
immuno-
compromised
and
pregnant contacts.
Diarrhoea
of Enteric
NO
Until symptom free
unknown origin
and/or
cause
identified.
Diphtheria
Source with negative Yes
Until tested negative.
pressure ventilation
Dysentery:
Bacillary
Enteric
Yes
Amoebic
Enteric
Yes
Erysipelas
Source
NO
24 hours from start of
therapy.
Erythema
Source
NO
infectiosum
(Slapped
Face
Syndrome)
E coli
Enteric
Yes
(Escherchi Coli)
Gastroenteritis, viral Enteric / respiratory
Yes
Contact
Infection
(Norwalk,SRSV,)
Control Team.
German Measles
Source
Yes
Exclude non-immune
(rubella)
pregnant staff.
Giardiasis
Source/Enteric
NO
Glandular fever
None
NO
(Epstein
Barr
varius)
Gonorrhoea
None
NO
Please contact GUM
Hepatitis:
HAV
Enteric
Yes
Hepatitis:
None
No
HBV
HCV
Herpes simplex
Source (for infants)
NO
Staff
affected
to
(Cold sores)
contact Occupational
Health. Lesions to be
covered.
Herpes zoster
Source
NO
Until
lesions
dry.
(Shingles)
Exclude staff who are
not immune
HIV (AIDS)
None
Yes
Impetigo
Source
NO
Until negative cultures
Usually 24 hours
Influenza
Respiratory
NO
Influenza other
Respiratory
NO
Contact ICT
e.g. SARS, Avian flu
Legionnaires
Nil
NO
Contact Microbiologist
disease
Leptospirosis
None
Yes
Listeriosis
Enteric
Yes
Malaria
None
NO
Measles
Source
Yes
Normally 7 days from
onset of rash. Contact
ICT.
Meningococcal
Source
Yes
Contact the ICT and
Meningitis
HPA.
Isolate for 24 hours.
Close contacts may
require
antibiotic
prophylaxis 48 hours
after
onset
usually
through GP.
Meningo-
Source
NO
encephalitis
(Acute)
MRSA
Source
NO
Please refer to policy
Mumps (Infectious Source
Yes
For 9 days after onset
Parotitis)
of parotid swelling.
Notify ICT.
Ophthalmia
Source
NO
24 hours treatment
Neonatorum
Parasalmonellatyph
Source/Enteric
NO
3
negative
stool
oid
Fever
and
cultures.
carriers
(typhoid fever)
Plague
High
Security Yes
DO NOT ADMIT to
Isolation Hospital
District
General
Hospital
Pneumonia:
NO
Pneumococcal
(lobar)
None
Staphylococcal
None
Broncho-atypical
None
Pneumocystis
None
Poliomyelitis (Acute) Source/Enteric
Yes
Psittacosis
Source/Respiratory
NO
Until symptom free.
Puerperal Sepsis
Source
NO
Pyrexia (of unknown Source
NO
Until symptom free
origin)
and or cause known.
Rabies
Source
NO
Contact
Consultant
Microbiologist
Respiratory
Source/
NO
Until clinically well
Syncytial Virus
Respiratory
Rotavirus
Enteric
NO
Salmonella
Enteric
NO
Scabies
Source
NO
Please refer to policy
Scarlet Fever
Source
NO
24 hours treatment
Shigella
Enteric
NO
Tuberculosis:
Contact
TB
Nurse
Suspected
or Source/Respiratory
Yes
Specialist.
Smear positive
(
Acid fast bacilli
seen in sputum)
Smear negative
None
Multi Drug Resistant Source/Respiratory
(known
or
suspected)
Variant Creutzfeldt-
None
Yes
Consult ICT.
Jakob
Disease
Please refer to Policy
(vCJD)
Viral Haemorrhagic High
Security Yes
DO NOT ADMIT to
Fever
Isolation Hospital
District
General
E.g.
Marburg
Hospital
Disease
Whooping Cough
Respiratory
Yes
SECTION 2: MANAGEMENT ARRANGEMENTS FOR INFECTION PREVENTION
AND CONTROL
2.1 INTRODUCTION
Cambridgeshire and Peterborough Foundation Trust are committed to improving a high
standard of infection prevention and control throughout the Trust. Infection Prevention and
Control is everybody’s responsibility and the key principles should be embedded in everyday
practice.
This section outlines the Trust’s approach to the management of Infection Prevention and
control including duties and responsibilities, assurance framework, training and monitoring
compliance with Infection Prevention and Control policies.
2.2 DUTIES AND RESPONSIBILITIES
Chief Executive
The Chief Executive is the Trust responsible officer for quality and safety. The Chief
Executive is responsible for ensuring that effective arrangements for Infection Prevention
and Control are in place within the Trust.
Trust Board
The Trust board are responsible for providing resources necessary for the delivery of
Infection Prevention and Control.
Director of Infection Prevention and Control (DIPC)
The DIPC is the overall executive lead for the management of Infection Prevention and
Control within the Trust. The DIPC reports directly to the Chief Executive.
The Infection Control Committee (ICC)
The Infection control committee meets quarterly and reports to the Healthcare governance
committee. The ICC are responsible for overseeing compliance with the Health Act 2006.
They are also responsible for:
• Advising the Trust Board and the Trust Executive Management group, via the
Healthcare Governance committee on all aspects of infection control and make
recommendations on measures to ensure effective infection control.
• Endorsing the annual Infection Prevention and Control Programme
• Advising on the most effective use of resources available for the implementation of
the programme and for contingency measures.
• Advising on and approve Infection Control policies and procedures, and review their
implementation.
• Taking responsibility for major decisions regarding Infection Control, and discuss
problems identified by the Infection Control team.
• Providing an annual report to the Healthcare Governance committee
• Making recommendations to other Trust committees or departments on Infection
Control matters.
• Ensuring effective liaison over infection control matters with acute Trusts and PCTs,
Learning Disability Partnerships and all other partner Agencies including relevant
private and voluntary sector organisations.
• Provision of advice on equipment and facilities to ensure that infection risks are
minimised.
• Planning and facilitating education, training and sharing of best practice for all
grades of staff on Infection Control issues
Infection Prevention and Control Team
The Trust’s Infection prevention Control team includes the Modern Matron – Infection
Prevention and Control, the Trust Nurse Professional Leads, and the Director of Infection
Prevention and Control. Infection Control Doctor Cover is provided by the Consultant
Microbiologists in the acute Trusts. The Trust has an Infection Control Committee that
reports to Quality and Healthcare Governance Committee. The team liaises with NHS
Cambridgeshire Infection Control Committee and NHS Peterborough Infection Control
Committee.
Modern Matron Infection Prevention and Control
The Modern Matron Infection Prevention and control is responsible for:
• Ensuring the Implementation of the Health Act 2006
• Implementing the Infection Prevention and Control Annual Programme
• Ensuring that infection control policies are evidence based and comply with national
and professional guidance
• Reviewing and updating Infection Prevention and Control Policies regularly
• Ensuring the provision of Infection Prevention and Control mandatory and induction
training.
• Implementing a programme of audit and surveillance.
• Providing support and training for Infection Control Link staff
• Providing Infection Prevention and Control advice to staff and service users
Professional Nurse Leads
The Professional Nurse Leads are responsible for ensuring the implementation of infection
Prevention and Control Guidance, Including the Health Act 2006, within their areas of
responsibility.
Senior Managers/Team managers/Ward Managers
Unit managers/Charge Nurses are responsible for:
• Ensuring that infection control policies are accessible to all staff
• Ensuing that the required facilities and equipment are available to enable
compliance with the policies.
• Ensure that all staff within their area of responsibility have received training in
Infection Prevention and Control
• Monitoring compliance with infection control policies and practices in their clinical
area in accordance with Trust and National guidelines.
• Designating an Infection Control Link person for their clinical area/s
Each Member of the Health Care Team
Infection prevention and control is Everyone’s responsibility. Each individual member of the
Health care team is responsible for:
• Making themselves familiar with the Trust infection Prevention and Control Manual.
• Ensuring that they follow the Infection Prevention and Control guidelines competently
and informing their line manager of any difficulties encountered in applying the
policies and guidelines.
• Ensuring that they have received appropriate Infection Prevention and Control
training.
Link Staff
Each clinical area should have an infection Control Link Person. Infection Control Link staff
will work closely with The Modern Matron/Lead Nurse Infection Prevention and Control and
will liaise with the ICT in relation to Infection Prevention Control issues in their clinical area .
Link staff are responsible for:
• Ensuring that Infection Prevention and Control audits are carried out in accordance
with the Trust Infection Prevention and Control audit programme.
• Implementing the ‘clean
yourhands’ programme in their clinical area.
Health Protection Agency Unit
The unit provides support to all the health Providers and Commissioning Trusts to ensure
that they are able to cover their health protection responsibilities for communicable disease
surveillance and control, chemical incidents and emergency planning. All notifiable diseases
and outbreaks of infection must be reported to the HPA unit
2.3 ASSURANCE
The Infection Control Team report quarterly to the Infection Control Committee with regard to
infections, audit programme and training. The Infection Control Committee reports annually
to the Quality and Health Care Governance Committee. Exception reports also go to the
Quality and Health Care Governance Committee. Minutes from the Quality and Health Care
Governance Committee go to the Board of Directors. The Trust has an Infection Control
Strategy which is available via the Trust website.
2.4 INFECTION PREVENTION AND CONTROL TRAINING
Induction Training
All new employees to the Trust must undertake Infection Prevention and Control training as
part of the Induction Training Programme. This includes voluntary workers and contractors
who will have face to face contact with service users. Induction training must include hand
hygiene, Standard Infection Control Precautions and Sharps Safety. Attendance records are
maintained on a training database by Anglia Support Partnership.
Mandatory Training
All clinical staff are required to undertake infection prevention and control update training on
an annual basis. Clinical staff must attend a face to face training session at least every two
years but may complete the NHS core learning unit ‘National Infection Control Training
Programme’ online in alternate years. Non clinical staff are required to undertake Infection
Prevention and Control update training every five years. Mandatory Training includes Hand
Hygiene, Standard Precautions and Sharps Safety. Records of attendance at Mandatory
Training sessions are maintained by Learning and Development and records of completion
of the National Infection Control Training Programme are accessed by the Infection
Prevention and Control trainer.
Reporting
A summary of Infection Prevention and Control Training will be included in quarterly reports
to the Infection control Committee and the Annual Report to the Quality and Healthcare
Governance Committee
2.5 MANADATORY REPORTING OF HEALTHCARE ASSOCIATED INFECTIONS
The Trust are required to report the following to the Health Protection Agency
• Methicillin Resistant
Staphylococcus aureus (MRSA) bacteraemia.
•
Clostridium difficile toxin (CDT) disease
• Serious Untoward Incidents (SUIs) relating to Infection Control
Notifiable diseases and outbreaks of infection must also be reported.
Mandatory HCAI surveillance results, outbreak summaries and SUIs will be included in the
quarterly report to the Infection Control Committee and the annual report to the Quality and
Healthcare Governance Committee.
2.6 DISSEMINATION OF INFORMATION
Policies and Guidance
• Infection Prevention and Control policies will be reviewed and updated on and annual
basis or if national guidance alters.
• The Infection Prevention and Control policies and guidance will be disseminated
throughout the Trust following ratification. Policies and guidelines will be published
on the Trust public website.
• Awareness of Infection Prevention and Control policies and guidelines will be raised
during Induction and Mandatory training sessions.
General Public Information
• Posters and leaflets in relation to hand hygiene are available in clinical areas as part
of the ‘clean
yourhands’ campaign.
• Information on the ‘clean
yourhands’ campaign and patient information leaflet on
infection control are available on the Trust public website.
• Leaflets relating to MRSA and CDT disease will be available from the infection
control team on request.
• Information regarding environmental cleaning, including the cleaning schedule, is
displayed on notice boards in clinical areas.
2.7 MONITORING AND COMPLIANCE
Compliance with infection prevention and control policies and the Health Act 2006 will be
monitored by the following:
• Annual reassessment by the Infection Control Team using the ‘essential steps’ tool.
• A rolling programme of Infection Prevention and Control Audit.
• Quarterly reports by the Infection Prevention and Control Team to the Infection
control Committee
• Annual report from the Infection Control Committee to the Quality and Healthcare
Governance Committee
• Annual review and revision of Infection Prevention Policies and Guidance, also
revision and review if national guidance alters.
SECTION 3: INFECTION CONTROL
3.1 STANDARD INFECTION CONTROL PRECAUTIONS
Standard precautions can be defined as a standard of care which should be used routinely
to minimise the risk of spread of infection (Wilson, 2006). Standard precautions are
applicable in all healthcare settings including hospitals clinics and service users’ own homes.
Many infections have an ‘incubation’ period before symptoms appear, during this time the
individual may not be aware that they have an infection. It is not possible to identify all
infected individuals therefore everybody should be considered as potentially infected.
Standard precautions should be applied to everyone irrespective of individual diagnosis or
lifestyle factors. The aim of standard precautions is to protect both staff and service users
from transmission of infection.
The principles of standard precautions are underpinned by the health and Safety at Work Act
1974 and the Control of Substances Hazardous to Health (COSHH) 1988 regulations. The
Health and Safety at Work Act requires that safe systems of work are used at all times.
COSHH regulations require that a risk assessment is made prior to contact with hazardous
substances in order to decide the correct level of precautions to be taken. COSHH
regulations apply to hazardous microorganisms present in body fluids and tissues as well as
chemicals and carcinogens. Staff should assess the risk of contact with blood, body fluids,
non intact skin or mucous membranes and apply the appropriate precautions.
Precautions include:
Hand decontamination.
Personal Protective Equipment.
Management of sharps and needlestick injury
Safe handling of specimens.
Immunisation of staff.
Management of spillage.
Safe disposal of contaminated waste.
Decontamination of reusable instruments and equipment
Decontamination of the environment
Each of these principles are dealt with in more detail later in this section.
Body Fluids
Body fluids include:
Blood
Cerebrospinal fluid
Peritoneal fluid
Pleural fluid
Pericardial fluid
Synovial fluid
Amniotic fluid
Semen
Vaginal secretions
Breast milk
Urine
Faeces
Vomit
Respiratory secretions e.g. sputum
Saliva (in relation to dentistry or human bites)
Standard precautions should be used for contact with
all body fluids, non intact skin and
mucous membranes. Safe working practices must be followed at all times.
REFERENCES – Section 3.1
Control of Substances Hazardous to Health Regulations 1988 London: HMSO
Health and Safety at Work Act 1974 London: HMSO
Wilson J (2006) Infection Control in Clincial Practice, 3rd Edition, London: Balliere Tindall
3.2 HAND DECONTAMINATION
3.2.1 The Importance of Good Hand Cleaning Technique
Hand washing is THE SINGLE most important measure in reducing the spread of infection.
Hands are the principle route of cross infection. The level of hand hygiene will be
determined by the activity or area of practice.
Social handwash
Using liquid soap.
Aseptic/hygiene handwash
Using an antiseptic solution.
Surgical handwash
Using an antiseptic solution. More prolonged and thorough
hand wash prior to gowning and gloving in ultra clean
environments.
3.2.2 When to clean hands
This is determined by actions - those completed and those about to be performed. A non
exhaustive list is given below. Hands should be cleaned at the point of care as part of the
Cleanyourhands campaign (Appendix 1 and 2)
3.2.3 Routine washing of hands
Before preparing, eating, drinking or handling food.
Before and after smoking.
Before and after visiting the toilet or assisting patients with this activity.
Before starting work (remove jewellery, e.g. rings) and after leaving an occupational
area.
After handling contaminated items such as dressings, bedpans, urinals, urine drainage
bags and nappies.
Before putting on gloves and after removing them.
Before and after removing any protective clothing.
After blowing your nose, covering a sneeze.
Whenever hands become visibly soiled.
3.2.4 Hand Care
Staff must comply to Trust clothing policy
Keep nails clean and short.
Do not wear artificial or gel nails or nail polish.
When washing hands, wrist watches should be removed.
Sleeves should be rolled up to the elbow.
Nail brushes should not be used for routine hand washing as they damage the skin and
encourage shedding of cells.
Nail brushes, in specialist units, must be single use disposable or single use
autoclaveable after each use.
3.2.5 Sequence of Events Appendix 3
Only use designated hand washing basin.
Wet hands under running water.
Dispense one dose of soap into cupped hand.
Hand wash for 10-15 seconds vigorously and thoroughly, without adding more water.
Rinse hands thoroughly under running water.
Dry hands with a disposable paper towel or under hot air dryer.
Dispose the paper towels in a foot operated bin. The lid should not be opened by hands.
3.2.6 Hand Sanitisers/Alcohol Rubs and Gels
These solutions are an effective decontamination agent, but should only be used on visibly
clean hands. Build up may occur after consecutive uses in which case hands must be
washed with soap and water.
Dispense the required amount of solution onto the hands.
Rub vigorously, using handwashing technique, ensure solution covers all hand surfaces
until hands are dry.
When visiting service users in their home, it is important to do a risk assessment of hand
washing facilities. If these are not adequate then alcohol gel may be used to impregnate
visibly clean hands. Disposable wipes could be used on soiled hands followed by hand
sanitisers/gel.
It is recommended (NICE 2003) that everyone involved in providing healthcare in the
community must be trained in hand decontamination, This includes service users, carers and
healthcare personnel.
Apply an emollient hand cream regularly to protect the skin from the drying effects of regular
hand decontamination. If a particular hand hygiene product causes skin irritation seek
occupational health advice.
3.2.7 Hand wipes – Use of
These are appropriate for use in a number of situations, e.g. for community staff, when hand
washing is compromised by inadequate facilities available to them. This should be followed
up by the use of alcohol hand gel.
Inpatients should be routinely offered hand wipes when unable to use the hand wash basin
facilities. This is particularly important after using a commode, bedpan or urinal and before
eating a meal or snack. Service users and their relatives should be encouraged to provide
hand wipes whenever possible to ensure that this is carried out.
REFERENCES – SECTION 3.2
Coello R, Glenister H, Fereres J, (1993) The Cost of Infection in Surgical Patients : A case
Control Study. Journal Hospital Infection 93, pp239-250.
Hand Decontamination Guidelines published by the Infection Control Nurses Association
(ICNA) 2002.
McGinley K, Larson E, Leyden J. (1988) ‘Composition and density of microflora in the
subungual space of the hand.’ Journal of Clinical Microbiology 26, pp 950 –3.
Teare L (1999), Handwashing, BMJ, 318, p686.
NICE Guidelines, Prevention and Control of Healthcare Associated Infection in Primary and
Community Care. June 2003.
(NPSA) EOESHA Principles for inclusion in HHPS.
All hand hygiene products must be approved for use in the organisation by the I P & C team.
Please refer to NPSA Hand hygiene Posters as Appendix 1, 2 and 3.
3.3 PERSONAL PROTECTIVE EQUIPMENT (PPE)
3.3.1 Gloves
Disposable gloves must be worn for direct contact with blood, body fluids and non-intact skin
or mucous membranes. Gloves must be discarded after each procedure and always
between patients. The use of gloves is not an alternative to thorough hand-washing.
3.3.2 Risk Assessment
The risk assessment should take account of various factors that include:
Nature of the task to be undertaken.
Risk of contamination to either patient or user.
Barrier efficacy of gloves, both surgical and examination gloves can fail.
Whether there is a need to double glove
Requirement for Sterile or non-sterile gloves.
Allergy/sensitisation.
Handling chemicals (including cleaning agents) or disinfectants, which could cause skin
irritation or are COSHH regulated.
As a general rule, if the risk is to the patient then ‘
Sterile’ gloves are required. If the risk is
to the user then ‘
Non-sterile’ gloves will probably be sufficient. When handling chemical
disinfectants you may need to wear industrial or household gloves.
Following the risk assessment, the next issue is what type of glove should be used:
Figure 2 - Glove Usage
PROCEDURE TO BE PERFORMED
TYPE OF GLOVE
• All aseptic procedures
Sterile, non-powdered, examination gloves:
latex or synthetic alternative (nitrile or vinyl
pigmentised powder free).
• Sterile pharmaceutical preparations
Non-sterile, non powdered gloves:
latex or synthetic alternative (nitrile or
polychloroprene).
• Handling aldehydes
Use nitrile or polychloroprene for handling
aldehydes.
• Cleaning with detergent.
Vinyl gloves – non powdered.
• Food handling, preparation and serving.
Vinyl gloves – non powdered.
If staff have an allergy to a particular type of glove they should be referred to their
occupational health department
Reference: Adapted from ICNA, 1999
3.3.3 Gowns and aprons
Disposable plastic aprons must be worn whenever contamination of clothing is possible.
As with handwashing this is determined by risk assessment of tasks to be undertaken.
Remember: Aprons are single use items.
Disposable gowns should be worn where there is a risk of contamination of the arms
3.3.4 Face Protection Protective face wear should be worn where risk of blood or other bodily fluids splashing onto
the face. This includes the preparation of some cytotoxic chemotherapy and during the
manual decontamination or cleaning of instruments. The wearing of full face visors is
recommended.
3.3.5 Single Use
Remember
gloves and aprons are single use items. The use of disposable visors is
recommended however, if reusable visors are used, they must be decontaminated between
uses. Personal protective equipment should be changed between ‘clean’ and ‘dirty’ tasks
and between service users. Hands must be washed following removal and disposal of
personal protective equipment. If used correctly PPE can be very effective in preventing the
transmission of infection however if used incorrectly it becomes a hazard.
3.3.6 Contamination of work wear
It is recommended that staff launder work clothing separately, this is of particular importance
where clothing has been contaminated with blood or body fluid. Clothing should be
laundered at 60ºC or as high a temperature as the fabric will withstand. Clothing should be
ironed at as high a temperature as it will withstand.
REFERENCES – SECTION 3.3
Beck W, Belkim N, Meyer K, (1995) ‘Divide and conquer – protection, comfort and cost of
the surgeons gown’. American Journal of Surgery Vol. 169, pp 286-287, March.
Callaghan I, (1998) ‘Bacterial contamination of nursing uniforms’ Nursing Standard, Vol. 13,
No 1, pp 37-42; September 23rd
Eason S (1995) ‘Are cover gowns necessary in the NICU for parents and visitors?’ Neonatal
Network, Vol. 14, No 8, p50 December.
Granzow J, Smith J, Nicholas R, Waterman R, Muzik A, (1998) ‘Evaluation of the protective
value of hospital gowns against blood strike-through and Methicillin resistant staphylococcus
aureus penetration’. American Journal of Infection Control Vol. 26, No 2, pp 85 -93 April
1998.
Infection Control Nurses Association (1999) ‘Glove Usage Guidelines’, September 1999.
Medical Devices Agency, June 1998 Latex Medical. Powdered. Latex Medical Gloves.
MDA SN9825.
Health Service Circular. Latex Medical Gloves and Powdered Latex Medical Gloves. HSC
1999/186.
NICE Guidance, June 2003. Prevention and Control of Healthcare Associated Infections in
Primary and Community Care.
3.4 ASEPTIC TECHNIQUE
3.4.1 Rationale
Aseptic technique refers to practice used to prevent the risk of infection. Some of these
practices will also reduce the healthcare worker’s risk of exposure to potentially infectious
blood and tissue during clinical procedures.
Aseptic technique is vital in reducing the risk of healthcare associated infection, and
associated morbidity and mortality, caused by invasive procedures. An aseptic technique
should be used during any invasive procedure which breaches the body’s natural defences,
i.e. the skin or mucous membrane, or when handling equipment which will enter a normally
sterile body cavity, such as urinary catheters.
3.4.2General recommendations
The principles of asepsis must be observed when undertaking any invasive clinical
procedure.
Key principles of asepsis:-
• Keep the exposure of the susceptible site to a minimum
• Appropriate personal protective equipment to be worn
• Sterile packs should be checked for evidence of damage or moisture penetration and
for expiry date
• Contaminated or non-sterile items must not be placed on the sterile field
• All disposable items must be disposed of in accordance with the waste policy
• Single use items must not be re-used
• Activity should be reduced in the immediate vicinity of the area in which the
procedure is to be performed.
Procedure for surgical hand decontamination using antiseptic solution
• Wet the hands under tepid running water
• Wash all surfaces with an aqueous antiseptic solution for 3 minutes
• Rinse hands well and dry thoroughly
Skin Preparation for a clinical procedure
Good skin preparation helps to reduce the risk of infection by lowering the chances of
bacteria from the patient’s skin will enter the wound.
Before giving an injection
If the site appears clean no further cleaning is necessary. If there is visible dirt, wash the
injection site with soap and water (DH 2006). Then use 2% Chlorhexidine gluconate in 70%
Isopropyl alcohol e.g. ChloraPrep and allow to dry before proceeding to insert the needle. ).
Povidine iodine 10% alcoholic solution can be used where there is chlorhexidine sensitivity
Before phlebotomy
The site should be visibly clean and then disinfected and allowed to dry thoroughly. For
disinfection ideally use 2% Chlorhexidine gluconate in 70% Isopropyl alcohol
Before taking blood cultures
Blood cultures should not normally need to be carried out in the Mental Health setting. If in
exceptional circumstances this is done, strict aseptic technique must be followed according
to the DH 2007 Saving Livings guidance on Taking Blood Cultures at:-
http://www.clean-safe-care.nhs.uk/toolfiles/80 blood%20cultures v2.pdf
3.4.3 Creating and maintaining a sterile field A sterile field is an area created by placing sterile towels or sterile drapes around the
procedure site and on the surface/trolley used for sterile instruments and other items needed
during the procedure.
Sterile items are free of potentially harmful micro organisms, once a sterile object comes into
contact with a non-sterile object or person or with dust or other airborne particles, it no
longer sterile.
To maintain the sterile field
• Do not place sterile items near open windows or doors
• Place only sterile items within the sterile field
• Do not contaminate sterile items when opening, dispensing or transferring them
• Do not touch non-sterile items with sterile gloves
• Do not touch sterile items with non-sterile gloves
• Be conscious of where your body is at all times and move within or around the sterile
field in a way that maintains sterility
Creating a safe environment
Specific rooms should be designated for performing clinical procedures and for processing
instruments and other items. Limiting the traffic and activities in these areas will lower the
risk of infection.
To maintain a safe environment:
• Limit the number of people who enter these areas
• Close doors and windows during procedures to minimise dust and eliminate insects
• Before a new patient is brought into the room, clean and disinfect all surfaces that
may have been contaminated during the last procedure – including examination
couches, dressing trolleys and examination/operating lamps
Prophylactic antibiotics are often inappropriately used, can contribute to the
development of resistant micro-organisms and are no substitute for good infection
control practice.
3.5 SHARPS MANAGEMENT
3.5.1 Important Points
Safe handling and disposal of sharps is a vital component of Standard Precautions. Injuries
with contaminated sharps can transmit infections, particularly blood borne viruses.
Good practice involves:
Correct assembly of the sharps bin, with particular attention to the lid.
Completion of the details on the bin label following assembly, locking and disposal.
Filling to no more than to the fill line.
Being aware of the first aid treatment and action following a needle-stick injury.
Being aware of the follow up treatment available after a used needle-stick injury.
Provision of training, sufficient numbers of sharps boxes and safe systems of work
are a health and safety responsibility of the management of the Trust
3.5.2 Disposal of Sharps
Sharps containers must:
• conform to BS 7320 and UN 3291.
• when in use be sited so that they cannot be tampered with.
• be sealed and replaced when contents reach the fill line.
• be taken to the point of use for the subsequent disposal of each sharp item.
• be marked with the ward/department/unit name or number, the name of the person who
assembles it, the name of the person who locks it and finally the name of the person who
disposes of it.
• be stored securely and be accessible only to authorised handlers.
It is the
personal responsibility of any person using a sharp item, to dispose of it correctly.
All used sharp items must be discarded into an approved sharps bin, immediately after use.
Syringes and needles should be discarded intact as one unit.
An adequate number and size of sharps bins, should be available in clinical areas.
Needles must not be re-sheathed, bent or broken.
No attempt is to be made to retrieve items from sharps containers.
Large pieces of broken glass and china should be placed into an approved container for
disposal (other than sharps bin).
REFERENCES – Section 3.5
AYLIFFE GAJ, FRAISE AP, GEDDES AM, MITCHELL K (2000) Control of Hospital Infection
A Practical Handbook London: Arnold
British Medical Association (1990) ‘A Code of Practice for The Safe Use and Disposal of
Sharps’ reprinted 1993. BMA House, London.
British Standards Institute (1990) BS7320. ‘Specification for Sharps Containers’. London
BSI 1990.
Health Service Advisory Committee (1992). ‘Safe Disposal of Clinical Waste’. London.
Perry C, (1999) ‘Using the Audit Cycle to Monitor Sharps Disposal Practice’. British Journal
of Infection Control, May 1999. pp 6-8.
The Environmental Protection Act (Duty of Care) Regulations 1991. London, HMSO.
United Nations - Standard 3291.
NICE Guidance June 2003. Prevention and Control of Healthcare Associated Infections in
Primary and Community Care.
3.6 INNOCULATION INJURIES, BLOOD CANTAMINATION AND POST EXPOSURE
PROPHYLAXIS (PEP)
This is to be read in conjunction with the Trust’s Sharps Policy
3.6.1 Main Risks from Inoculation Injury and Blood Contamination
The main concern is the transmission of blood-borne viruses, i.e.:
HEPATITIS B (HBV)
HEPATITIS C (HCV)
HUMAN IMMUNODEFICIENCY VIRUS (HIV)
3.6.2 Risk From Injuries
The risk of transmission is higher (particularly for HIV) when there is:
A deep injury, i.e. when the injury is deeper than a superficial scratch drawing blood.
Visible blood on the device that caused the injury (including teeth).
Injury with a needle that had entered from the source patient’s blood stream.
3.6.3 Following a inoculation Injury, from a needle contaminated with blood or
Highly Suspected Person to another Recipient the Risks are:
Hepatitis B
1:3
HBV
Hepatitis C
1:30
HCV
Human Immunodeficiency Virus 1:300
HIV
It has been estimated that the risk of acquiring HIV through mucous membrane exposure
(e.g. splashed with contaminated body fluids) is much less probably 1 per 1000 injuries
(0.1%).
Remember if post exposure prophylaxis for HIV is to be given it should ideally be
given as soon as possible, preferably within an hour of injury.
3.6.4 Action in the Event of any inoculation Injury, Bite or Contamination with Blood
Encourage bleeding, squeeze the injury, do not suck.
Wash the skin thoroughly with soap and water, do not scrub.
Irrigate contaminated mucous membranes, e.g. mouth and eyes with large quantities of
water or splash kits where provided.
Cover the injury with waterproof dressing and Inform the nurse in charge or the line
manager.
Report to Occupational / Staff Health or, out of hours contact A & E who will discuss
appropriate procedure and Post Exposure Prophylaxis.
Complete incident/adverse event form.
REFERENCES – Section 3.6
Guidance for Clinical Health Care Workers: Protection against Infection with Blood Borne
Viruses, UK Health Departments (1999).
Exposure To Hepatitis B Virus: Guidance On Post Exposure Prophylaxis Communicable
Disease Report. Vol. 2, Review No 9, August 1992.
Guidance on the Investigation of Management of Occupation Exposure to Hepatitis C -
Communicable Disease Public Health (1999), pp 2258-2262, Ramsey.
HSC 2002/011 Hepatitis C Infection. HCW 2002.
Post Exposure Prophylaxis: Eye of the Needle. Guidance from the UK Chief Medical
Officer, DoH. February 2004.
3.7 MANAGEMENT OF LABORATORY SPECIMENS
A specimen is defined as any bodily substance taken from a person for the purpose of
analysis, such as blood or urine. All specimens should be regarded as potentially infectious,
and all members of staff involved in collecting, handling and transporting specimens must
follow infection control precautions to prevent transmission of infection.
To reduce risks, the number of persons handling specimens should be kept to a minimum.
Everyone handling specimens should be trained and should be aware of related infection
control policies.
3.7.1 General recommendations
Everyone involved in collecting, handling and transporting specimens should be educated
about standard infection control precautions and trained in:-
• Hand hygiene
• The use of personal protective clothing
• The safe use and disposal of sharps
Patients and their carers should be given advice on the collection, storage and transportation
of specimens, where appropriate.
3.7.2 Principles of specimen collection
The clinician or person taking any specimens must ensure that the following principles are
followed:
• Effective hand washing is performed before and after collection of the specimen in
accordance with the Hand Hygiene Policy (ICC 02)
• Appropriate protection clothing is worn when collecting the specimen i.e. non-sterile
gloves, aprons and, where splashing is possible or expected, goggles or visor
• Measures are taken to prevent contamination of the sample
• The specimen is taken at the correct time
• The correct specimen container is used
• The specimen container is tightly sealed to prevent leakage
• The outside of the container is free from contamination with body fluid
• The sample is appropriately labelled with patients name, date of birth, hospital
number (if applicable) as well as the date and time that the specimen was obtained
• The appropriate request form is completed with details of the patient’s relevant
medical history, investigation required and dates of any antibiotic treatment received.
Please ensure that the correct name is on the specimen container and the request
slip
• The specimen container must be placed in an approved specimen bag and sealed,
with the request form in the separate pouch which is attached
• The specimen is stored correctly and transported to the laboratory promptly
• The patient’s confidentiality is maintained at all times
• All
specimen
containers
should
be
checked
for
exterior
contamination and disinfected
3.7.3 High risk specimens All clinical specimens should be regarded as potentially infectious. Specimens known or
suspected to contain high-risk pathogens such as Tuberculosis or blood-borne viruses
should be marked using a biohazard sticker on both the specimen container and the request
form.
3.7.4 Microbiological specimens Microbiology results are crucial for identification of appropriate antibiotic therapy and
application of infection control measures.
To ensure that accurate microscopy, culture and sensitivity results are obtained, steps must
be taken to avoid contamination of the specimen with the service user’s or clinician’s own
normal flora.
Antibiotic therapy may affect the specimen and inhibit bacterial growth in the laboratory
cultures, and may produce misleading results. If possible the sample for microbiological
investigation needs to be collected prior to commending antibiotic therapy. However, if
collected during antibiotic therapy, the specimen should ideally be collected immediately
before a dose is administered.
3.7.5 Faeces Stool specimens should ideally be collected during the first 48 hours of illness. The chance
of identifying pathogens diminishes as time after acute illness passes. A spatula must be
used to collect a walnut-sized sample of solid stool or appropriate 15mls of liquid stool into a
specimen bottle. This should be sufficient for microbiological investigation. If viral infection
is suspect the specimen bottle should be ¾ full.
In an outbreak, stool specimens should be collected from all the affected persons for
bacteriology and virology. The sample for bacteriology should be sent for culture and the
sample for virology should be sent for electron microscopy. They should ideally reach the
laboratory on the day of collection. If necessary, stool specimens can be stored in a
designated specimen refrigerator for no longer than 24 hours. Do not freeze faeces.
3.7.6 Urine A mid-stream specimen of urine is the best sample for culture and sensitivity. Bladder urine
is sterile but it can easily be contaminated during collection by bacteria, which colonise the
perineum. The perineum must therefore be cleaned with soap and water prior to specimen
collection to help reduce bacterial contamination. Discarding the first several millilitres of
urine and collecting 5-10 mls of midstream urine in a sterile container will reduce
contamination. The infecting organism is more likely to be detected in concentrated or early
morning urine.
A specimen of urine from a urinary catheter should be obtained by aspiration with a sterile
5ml syringe and a fine bore sterile needle from the self-sealing sampling port.
The port should be cleaned with a steret or alcowipe (70% Isopropyl alcohol) and the needle
inserted through the port.
The catheter should never be disconnected to obtain a sample as this will break the closed
system and serve as a portal of entry for micro-organisms.
Indiscriminate sampling should be avoided and sampling should only be carried out when
strictly necessary.
Urine samples collected for culture should be examined within two hours of collection, or 24
hours if kept in a designated specimen refrigerator at 4-8◦C.
3.7.7 Sputum Sputum samples should ideally be collected in the morning before eating, drinking or
cleaning teeth.
The service user should be asked to cough up material from deep in the lungs and
expectorate without saliva into a specimen container. Saliva or mucous from the back of the
nose should not be provided as sputum. The specimen should be delivered to the laboratory
as soon as possible, or within 24 hours if refrigerated.
3.7.8 Wound swabs Taking a wound swab is only recommended when clinical signs of infection are identified
and the information gained will affect treatment. Routine swabbing should be avoided
(Gould 2001; Parker 2000).
As with all investigations the findings must be reviewed alongside clinical information and
treatment should not be based on swab results alone.
If pus is present, a sample obtained by aspiration with a syringe will be the most informative.
Loose debris on the wound should be removed, as this is likely to contain high levels of
bacteria, which are not representative of the infective organism.
If the wound is dry, moisturising the swab with sterile normal saline makes it more absorbent
and increases the survival of bacteria prior to culture (Donovan 1998; Gilchrist 1996). The
swab must touch all areas by wiping in a zigzag and rolling motion over the surface of the
wound. The swab should then be placed directly into a tube and carefully labelled and sent
to the laboratory as quickly as possible.
It is important that the specimen is supported with sound clinical information recorded on the
microbiology request form. Details relating to the patient’s symptoms of infection and
treatment history will assist the microbiologist in making an accurate diagnosis and
appropriate recommendations for management.
Sensitivities for antibiotic treatment are not always returned with culture results because
many isolates reflect bacterial colonisation, rather than infection. It is worthwhile obtaining
advice from the laboratory to discuss results and treatment of the case.
3.7.9 Storage of specimens For accurate results to be obtained, specimens should be received by the laboratory as soon
as possible.
If for microbiological investigation, urine and sputum specimens should ideally be examined
in the laboratory within 2 hours of collection, and stool samples within 12 hours. However,
where this is not possible, urine and sputum specimens must be stored within a designated
fridge, but only for a maximum of 24 hours, at 4-8◦C. This will help prevent bacteria and
contaminants from multiplying and giving misleading results.
However, it must be noted that samples taken for blood culture must not be
refrigerated, but must be transported to the laboratory as soon as possible for
incubation at 37◦
C. Samples obtained for non-microbiological investigation also do
not need to be refrigerated. If any clinical specimens are to be sorted in a refrigerator, it is essential that:
• There is a refrigerator for the purpose of specimen storage only
• The temperature in the refrigerator is kept between 4-8◦C (minimum and maximum
temperature to be checked and recorded daily)
• The specimen refrigerator is not accessible to the public
• The specimen refrigerator is cleaned on a weekly basis, defrosted regularly, cleaned
and disinfected after any spillage or leakage (see Spillage of Blood and Body Fluid
Policy ICC 04)
3.7.10 Transportation of clinical specimens Under the Health & Safety at Work Act (1974) all staff have an obligation to protect
themselves and others .e.g. the public, from inadvertent contamination from hazardous
substances.
All staff must therefore be aware of how to deal safely with clinical specimens and how to
avoid any spillage or leakage of body fluids.
All specimens must be collected by portering/transport staff in a secure, robust, leakproof
container with a biohazard label. These containers must be cleaned and disinfected weekly
and after any visible spillage.
All clinical staff transporting specimens from a patient’s home to a surgery, clinic or health
centre must be provided with a rigid, robust, leak proof container with a tight fitting lid. This
container must be identified with both a biohazard sticker and contact telephone number in
case the box is lost. Clinical staff must not transport specimens unless such a container is
used.
Appendix 2- Section 3.7
Daily temperature check – specimen fridge
The temperature of the specimen fridge must fall between 4-8◦C. If the temperature falls
outside of this range, the fridge thermostat must be adjusted accordingly and advice sought
from the labs as to whether this will adversely affect analysis.
If the temperature remains outside of this range, the fault must be reported and the fridge
repaired as soon as possible. If it cannot be reported, a new fridge should be purchased.
Date
Temperature recorded in ◦
C
Action taken Signature
if required
Actual
Min
Max
3.8 STORAGE, DISTRIBUTION AND DISPOSAL OF VACCINES
Guidance is available in the UK Guidance on Best Practice in Vaccine Administration which
has been distributed to each practice. The guidance can also be downloaded from the
website:
http://www.vaccine-administration.org.uk/main_using.html.
3.8.1 Storage of Vaccines Equipment Fact Sheet
This is the information obtained from the Department of Health identified in the ‘Green Book’.
The fact sheet contains information on some of the equipment currently available in
connection with vaccine storage and distribution. It is intended as an aid for those in
handling of vaccines and does not claim to be comprehensive.
3.8.2 World Health Organisation Product Information Sheets
Contain technical and purchasing information on selected equipment for the storage,
transport and the administration of vaccines for the Expanded Programme on Immunisations
(EPI). Most of the equipment included has been independently tested at the WHO
authorised laboratories, but little of it is manufactured in the UK, therefore is not always
readily available. Some items, nevertheless, may be of interest.
Please contact WHO at the address below or website address to obtain a copy:
http://www.who.int/vaccines-documents/DocsPDF00/www518.pdf
World Health Programme
Expanded Programme on Immunisation
Cold Chain
Switzerland
Fax: 00 41 22 788
REFERENCES – Section 3.8
Department of Health (1999). Current vaccine issues: action update. PL/CMO/99/5,
PL/CNO/99/9, PL/CPHO/99/4.
Department of Health (1996). ‘Immunisation against infectious Disease’ Salisbury D M,
Begg N T (Eds) London HMSO.
Kassianos G C (1998). Immunisation Childhood and Travel Health. Third Edition.
Blackwell Science Ltd.
Northern and Yorkshire Regional Health Authority, ‘The Vaccine Cold Chain from
Manufacturer to Patient’.
Wakefield ‘Child Immunisation Policy’. November 1996.
APPENDIX 1 – Section 3.8
SAFE IMMUNISATION – COLD CHAIN RESPONSIBILITY
NOMINATED PERSON
DEPUTY
NAME:
___________________________________________________________
DESIGNATION:_________________________________________________________
LOCAL WRITTEN PROCEDURE
TEMPERATURE CONTROL MIN/MAX
TEMPERATURE RECORD
STORAGE/POSITION IN REFRIGERATOR
CLEANING/DEFROSTING
ACTIONS:
COLD CHAIN FAILURE
DISPOSAL VACCINES
DISPOSAL CONTAMINATED WASTE
DATE TRAINING COMPLETED:____________________
3.9 DEALING WITH SPILLAGES
(To be read in conjunction with the Organisation’s Waste Policy)
It is vital that any spillage is attended to as soon as possible. Under the Control of
Substances Hazardous to Health Regulations 1994 (COSHH), assessment of hazards and
associated risks to health must be undertaken to ensure the health and safety of employees,
patients and other visitors to the healthcare premises.
3.9.1 Responsibilities
All staff involved in the clinical care of patients or the safe handling of waste must be aware
of how to deal safely with any spillage which may occur.
3.9.2 Mercury Spillages
Mercury should be avoided where possible. The aim is to minimise risks from mercury
spillages and, the ideal would be to reduce the use of Mercury in the occupational area
by using alternative equipment. Where equipment containing Mercury is used a mercury
spillage kit should be available.
The hazards resulting from mercury exposure are inhalation of fumes, or skin absorption. It
is recognised that mercury exposure is of a relatively low risk but it remains important for
spillages to be dealt with quickly and effectively.
Spills fall into two categories:
3.9.3 Large spills
Large spills are usually dealt with by a specialist service. However, before specialist help
arrives the following points will need to be remembered:
The area will need to be evacuated and marked off to restrict entry of personnel.
Ventilate by opening doors and windows.
Remove all sources of heat, either by switching off or removing from the area.
3.9.4 Small spills
Members of staff using the following points will be able to deal with a small spill using a
mercury spillage kit:
Avoid direct skin contact with the mercury (ensure to wash any mercury from the skin
should contamination occur).
Protective clothing should be used, i.e. disposable plastic apron and non-powdered,
non-sterile gloves.
Use a Mercury Spill Collector, carefully soak up the mercury in the sponge and reseal
the container.
Place the container in a plastic bag, seal and mark ‘Mercury Contamination’.
Arrange for collection.
Wash hands and arms carefully.
After all procedures are actioned, complete an incident/accident form as per policy.
3.9.5 Body Fluid Spillage
Body fluid spills are divided in to two categories, those which are visibly contaminated with
blood and those which are not:-
3.9.5a Blood Spillage
Spillage of blood should be dealt with as soon as possible.
Splashes of blood (or any body fluid) on the skin should be washed off immediately
with soap and water.
If there is broken glass do not touch even with gloved hands – use a paper or plastic
scoop and dispose in the sharps box.
Ensure staff use Personal Protective Equipment (wearing non-sterile, non-powdered
latex gloves and plastic apron) and either sprinkle sodium hypochlorite releasing
granules, e.g. Presept or Sanichlor tablets diluted to cover and soak up the blood.
The sodium hypochlorite concentration used should be equivalent to 10,000 parts
per million (ppm) of available chlorine. In general, this corresponds to a 1:100 (1%)
dilution of household bleach, but it is emphasised that the strength of individual
brands of bleach may vary. Please read the manufacturer’s instructions before use.
Chlorine granules can be used for spillages of up to 100mls.
Leave for 2-5 minutes.
Wipe up with paper towels (or use a disposable scoop for granules) and place in the
appropriate waste disposal (see Section 2 – 2.9)
Dispose of soiled gloves and apron and wash your hands.
Domestic cleaning using detergent and water should follow.
If the area is a carpet it is inappropriate to use bleach, clean by:
-
Using paper towels.
- Then wash detergent and water.
- Finish with a carpet cleaner or steam cleaner.
An Important COSHH Hazard notice has been attached to Chlorine Releasing Granules:
Do not use in poorly ventilated areas
Do not use if suffering from a known chest condition or asthma.
3.9.5b
Urine Spills Visibly Contaminated with Blood
Chlorine releasing agents should
not be used for urine spillages even if it contains
visible blood. If a chlorine releasing agent is used, i.e. Domestos, Titan or Presept with
urine the resulting fumes are considered a hazard. The recommended practice is:
Wear non-sterile, non-powdered latex gloves (or other suitable glove – see figure 2,
page 14 and plastic apron.
Soak up with paper towels.
Use detergent and water on area after soaking up the spill.
A chlorine-releasing agent may now be used on the area if necessary.
Discard gloves, waste materials and apron in a clinical waste bag for incineration.
Wash hands thoroughly.
3.9.5c
Spillages of Body Fluids not Visibly Contaminated with Blood
These spillages will include faeces, vomit, urine and sputum.
Always wear protective clothing, i.e. plastic disposable apron, disposable powder-
free, non-sterile latex or similar (see Section 2 – 2.3 ‘Protective Clothing’).
Use paper towels to soak up the spill.
Discard paper towels and any other waste from the spillage into clinical waste bags.
Clean the contaminated area with hot water and detergent.
Discard gloves and apron in a clinical waste bag.
Wash hands.
Please contact infection control for advice concerning the use of disinfectants where there is
a known infection.
REFERENCES – SECTION 3.9
Bond W W, Favero M S, Petersen N J, et al. (1981) ‘Survival of hepatitis B virus after drying
and storage for one week’ Lancet 1:550.
Control of Substances Hazardous to Health regulations 1994.
Health and Safety at Work Act (1974).
HSE Environmental Hygiene Guidance Note Number 17.
Substances Hazardous to Health Emergency Spillage Guide – Croner Publications.
Royal College of Pathologists (1995) HIV and the Practice of Pathology. Report of the HIV
Working Party of the Royal College of Pathologists. London Royal College of Pathologists.
The Senate of Surgery of Great Britain and Ireland (1998) ‘Blood borne viruses and their
implications for surgical practice and training’ Senate Paper 4 – September 1998, London:
McKenzie Graham.
UK Health Departments (1993) Protecting Healthcare Workers and Patients from Hepatitis
B. Recommendations of the Advisory Group on hepatitis. London: Department of Health.
3.10 WASTE SEGREGATION
The following guidance is to be read in conjunction with the Trust’s Waste policy.
Waste generated is segregated into four principal streams for disposal.
Black bags
Use for all domestic-type wastes e.g. paper, food, dead flowers.
The waste must not provide an infection risk and will not derive from
patient treatment.
Many of these wastes may be recycled, and should be wherever possible.
Yellow bags
Use for all non-sharp wastes arising from patient care. This will include
dressings; gloves and other protective equipment; and used equipment.
The wastes will be treated as having an infection risk and will classified as
“hazardous” for disposal.
None of these materials should be contaminated with any cytotoxic or
cytostatic medicines.
Sharps bins
(yellow lid)
Use for infectious and non-infectious sharps (needles, blades etc.),
syringe bodies (including those containing partially discharged
medicines); used ampoules and vials; dropped and refused medicines;
and associated equipment.
None of these materials should be contaminated with any cytotoxic or
cytostatic medicines.
Add an absorbent pad to each new bin to soak up any excess liquid
Sharps bins
(purple lid)
Use for similar materials as described above (yellow-lidded sharps bin)
but contaminated with cytotoxic or cytostatic materials.
This bin should also be used for any surplus or expired cytotoxic or
cytostatic medicines (rather than return to pharmacy).
Add an absorbent pad to each new bin to soak up any excess liquid
Do not discharge part-filled syringes into the sharps box.
If any dressings etc normally placed in the yellow bag are contaminated with Cytotoxic or
cytostatic materials, they must either be placed in a yellow bag with a purple stripe or the
yellow bags must be clearly labelled to indicate cytotoxic contents
Cytotoxic and cytostatic wastes must be segregated, as they require destruction by
incineration and under different conditions than infectious wastes.
The adoption of a simplified segregation system means that hazardous and non-
hazardous materials are mixed in the same container. This is permitted only where no
adverse reaction will occur or where the future treatment of the waste will not be
compromised.
Other specialised containers may be in use for certain dedicated activities. For example,
amalgams from dental units will be kept in white plastic pots.
3.10.1 Assessment of “Infectious”
Infectious waste is essentially a waste that poses a known or potential risk of infection,
regardless of the level of infection posed. Even minor infections are included within the
definition of infectious.
General assumptions
Healthcare waste generated from Healthcare practices, or produced by healthcare workers
in the community, is considered to be infectious waste unless assessment to the contrary
has taken place. A healthcare practitioner bases this assessment on item and patient-
specific clinical assessment.
Municipal waste from domestic minor first aid and self-care that does not require staff
involvement is assumed to be non-infectious unless indicated otherwise. Therefore, soiled
waste such as nappies, sanitary products and plasters are not considered to be infectious
unless a healthcare practitioner the producer gives advice to the contrary.
Municipal-type waste from industrial and commercial premises is assumed to be non-
infectious providing that a risk assessment has been conducted. Therefore, soiled waste
such as plasters and sanitary products are not considered to be infectious unless a
healthcare practitioner the producer gives advice to the contrary.
2.10.2 Offensive / Hygiene Waste
The term “offensive” has been introduced to describe waste which is non-infectious and
which does not require specialist treatment or disposal, but which may cause offence to
those coming into contact with it.
Examples of offensive waste include:
• incontinence and other waste produced from human hygiene;
• sanitary waste;
• nappies.
Although non-infectious offensive wastes may be landfilled in suitably licensed facilities, this
waste (at least that produced in quantity) should not be placed in the domestic refuse but
should be collected separately.
The offensive waste stream should
not include any of the following:
• sharps;
• body parts, organs or blood products;
• waste chemicals;
• medicinal waste that consists of pharmaceutically active substances;
• dental amalgam;
• wastes containing residual medicines excreted, secreted or otherwise present in any
bodily fluid.
Although the waste stream must be assessed to determine whether the waste is likely to be
infectious, the general assumption made is that such waste presents no risk of infection
unless indicated by a healthcare practitioner e.g. If a person is undergoing treatment for a
known or suspected Urinary Tract Infection, the waste is likely to be considered infectious
and disposal via incineration or treatment arranged accordingly.
If it is decided that such wastes may be confidently isolated from infectious waste streams,
they may be packaged in yellow bags with a black stripe (“tiger bags”) and sent for landfill at
an appropriate facility.
3.10.2 Spillage Procedures
Individual units should produce clear written procedures, specific to local situations and
waste arisings, for dealing with spillages which:
• specify the reporting and investigation procedures;
• specify the use of a safe system of work for clearing up the waste;
• set out appropriate requirements for decontamination;
• specify the protective clothing to be worn.
The ready availability of appropriate spillage kits helps ensure the correct action in the event
of a spillage. Such kits are particularly useful at storage, waste treatment and waste disposal
sites, and should be carried on all vehicles carrying healthcare waste.
Spillage kits may contain, for example:
• disposable gloves;
• a disposable apron;
• an infectious waste sack/sharps bin;
• paper towels;
• disposable cloths;
• disinfectant recommended;
• a means of collecting sharps.
Appropriate equipment for collecting spilled waste and placing it in new containers should be
provided. Sharps must not be picked up by hand.
Spilled waste and any absorbent materials need to be placed in an infectious waste
container for disposal.
3.10.3 Container closure and labelling
Black bags
The bags should be sealed when ¾ full by either tying a knot in
the neck or by securing with a tag or tape. Staples must not be
used, as the bag will tear.
Yellow bags
The bags should be sealed when ¾ full by securing with a tag
bearing a unique number. The tags are issued to each
producer from a central source. The unique numbers are
recorded and provide an audit trail back to the producer.
Staples must not be used, as the bag will tear. The bags will
likely be printed “For Incineration Only”.
Sharps bins
The bins should be sealed either when ¾ full or after 3 months
(whichever is sooner). The label shall be completed on the box
indicating the name of the person sealing the bin and the date
on which it was sealed.
Do not place sharps bins inside any bag for disposal.
3.10.4 Other wastes
There are a limited number of options available to community healthcare workers for
the handling and disposal of the non-sharps waste that that is generated during
treatment of the patients in their home.
Disposal via domestic waste bin
If patients are treated in their home by a community nurse or a member of the NHS
profession, any waste produced as a result is considered to be the healthcare professional's
waste.
National guidance states that wastes generated by a healthcare worker within a patient’s
home
must not be disposed of within the domestic waste bin. This is because under the
Environmental Protection Act 1990 it is unlawful to deposit, recover or dispose of controlled
waste without a waste management licence, contrary to the conditions of a licence or the
terms of an exemption, or in a way which causes pollution of the environment or harm to
human health. Infectious healthcare waste is prohibited from landfill.
The Duty of Care placed upon the healthcare worker requires that the waste is
managed properly, recovered or disposed of safely and is only transferred to
someone who is authorised to keep it. Householders are exempt for their own
household waste.
.
There are two options available for the removal (in yellow bags) of wastes generated
by a healthcare worker at a patient’s home:
•
Removal by the healthcare worker to their work base; or
•
Collection by a third-party contractor e.g. local authority.
Mixed domestic waste does contain small amounts of plasters, small dressings and
incontinence products. Where the healthcare worker produces the same or similar items,
these – with the following considerations – can be placed in the domestic refuse (with the
householder’s permission).
The following should be considered:
•
the size of the dressing – small dressings no larger than a dressing pad (that is, 130 mm
× 220 mm) can be disposed of as domestic refuse;
•
the type of dressing – specialised antimicrobial types of dressing should be disposed of
as offensive/hygiene or medicinal waste as appropriate;
•
the quantity produced – where a number of small dressings are produced regularly over
a period of time, it may be appropriate to dispose of these as offensive/hygiene waste. If,
however, the amount produced is relatively small and consistent with that likely to be found
in the household waste stream, it may be discarded in the domestic refuse;
Where such waste is placed in the domestic refuse, the waste should be wrapped in a
plastic sack. The wrapping should not be yellow but ideally white or opaque e.g. sandwich
bags and bin liners.
If a patient treats themselves in their own home, any waste generated as a result is
considered to be their own, it is not subject to the same restrictions, and may be placed in a
domestic waste stream. Only where a particular risk has been identified (based on medical
diagnosis) does such waste need to be treated as hazardous clinical waste. In these cases,
local authorities are obliged to collect the waste separately when asked to do so by the
waste holder, but may make a charge to cover the cost of collection.
3.10.5 Removal via community healthcare practitioner
Yellow bags
Use for all non-sharp wastes arising from patient care. This will
include dressings; gloves and other protective equipment; and
used equipment.
The wastes will be treated as having an infection risk and will
classified as “hazardous” for disposal.
None of these materials should be contaminated with any
cytotoxic or cytostatic medicines.
Note:
If any dressings etc normally placed in the yellow bag are contaminated with
cytotoxic or cytostatic materials, they must either be placed in a yellow bag with a purple
stripe or the yellow bags must be clearly labelled to indicate cytotoxic contents.
3.10.6 Pharmacy
Waste
No cytotoxic or cytostatic medicines should be returned to the supplying pharmacy.
All such materials should be disposed off in a purple lidded sharps’ container
The following range of medicines – all non-cytotoxic or non-cytostatic – may be returned to
the supplying pharmacy (under agreement) for subsequent disposal:
• Expired or surplus medicines;
• Patients’ own medicines;
• Inhalers and aerosols (full and part-used) – empty units into yellow bags;
• Potassium permanganate tablets (in container);
• Caustic sticks.
The medicines will normally be moved in a secure pharmacy box or bag.
The medicines must be kept secure pending collection from the nominated point by the
waste carrier.
REFERENCES – Section 3.10
Health Technical Memorandum 07-01: Safe Management of Healthcare Waste
Environmental Protection Act (1990) Part 2.
APPENDIX 1 Section 3.10
LIST OF CYTOTOXIC AND CYTOSTATIC MEDICINES
Aldesleukin
Alemtuzumab
Alitretinoin
Altretamine
Amsacrine
Anastrozole
Arsenic trioxide
Asparaginase
Azacitidine
Azathioprine
Bacillus
Calmette-
Bicalutamide
GuerinBexarotene
Bleomycin
Busulfan
Capecitabine
Carboplatin
Carmustine
Cetrorelix acetate
Chlorambucil
Chloramphenicol
Choriogonadotropin alfa
Cidofovir
Cisplatin
Cladribine
Colchicine
Cyclophosphamide
Cytarabine
Cyclosporin
Dacarbazine
Dactinomycin
Daunorubicin HCl
Denileukin
Dienestrol
Diethylstilbestrol
Dinoprostone
Docetaxel
Doxorubicin
Dutasteride
Epirubicin
Ergonovine/methylergonovine
Estramustine phosphate Estrogenprogestin
Estradiol
sodium
combinations
Estrogens, conjugated
Estrogens, esterified
Estrone
Estropipate
Etoposide
Exemestane
Finasteride
Floxuridine
Fludarabine
Fluorouracil
Fluoxymesterone
Flutamide
Fulvestrant
Ganciclovir
Ganirelix acetate
Gemcitabine
Gemtuzumab
Gonadotropin chorionic
ozogamicin
Goserelin
Hydroxyurea
Ibritumomab
tiuxetanIdarubicin
Ifosfamide
Imatinib mesilate
Interferon alfa-2a
Interferon alfa-2b
Interferon alfa-n1
Interferon alfa-n3
Irinotecan HCl
Leflunomide
Letrozole
Leuprolide acetate
Lomustine
Mechlorethamine
Megestrol
Melphalan
Menotropins
Mercaptopurine
Methotrexate
Methyltestosterone
Mifepristone
Mitomycin
Mitotane
Mitoxantrone HCl
Mycophenolate mofetil
Nafarelin
Nilutamide
Oxaliplatin
Oxytocin
Paclitaxel
Pegaspargase
Pentamidine isethionate
Pentostatin
Perphosphamide
Pipobroman
Piritrexim isethionate
Plicamycin
Podoflilox
Podophyllum resin
Prednimustine
Procarbazine
Progesterone
Progestins
Raloxifene
Raltitrexed
Ribavirin
Streptozocin
Tacrolimus
Tamoxifen
Temozolomide
Teniposide
Testolactone
Testosterone
Thalidomide
Thioguanine
Thiotepa
Topotecan
Toremifene citrate
Tositumomab
Tretinoin
Trifluridine
Trimetrexate glucuronate
Triptorelin
Uracil mustard
Valganciclovir
Valrubicin
Vidarabine
Vinblastine sulfate
Vincristine sulfate
Vindesine
Vinorelbine tartrate
Zidovudine
3.11 DECONTAMINATION (CLEANING, DISINFECTION AND STERILISATION OF
EQUIPMENT)
3.11.1 Introduction
Cleaning, disinfection and sterilisation are processes, which remove or destroy
microorganisms. The method of decontamination selected will depend on the infection risk
associated with the medical device, the nature of the contamination, time available for
processing, the heat, pressure, moisture and chemical tolerance of the item, the availability
of processing equipment and risks associated with the decontamination method. Heat
sterilization or disinfection is preferred, but if the item is heat sensitive, chemicals may have
to be used.
All reprocessing of surgical instruments and other medical devices should be undertaken
outside the clinical environment preferably in central reprocessing suites e.g. CSSD. Local
reprocessing in individual departments should be avoided. Please refer to BDA guidance.
All health care workers involved in the processes of cleaning, disinfection and sterilisation
must be aware of the guidance issued by the DoH on Decontamination.
HSC 2000/032. 3.11.2 Cleaning
Physical cleaning removes micro organisms and the organic material on which they thrive.
It
is always the essential prerequisite to disinfection or sterilisation. Cleaning does not
destroy the organisms, but removes them and other contaminants which will adversely affect
the performance of further decontamination procedures. If thorough cleaning is not
performed, blood or other matter may remain on the item during other processes.
3.11.3 Disinfection
This process aims to inactivate micro organisms reducing them to a level below that which is
associated with infection. This process does not however kill spores. Disinfection is usually
appropriate for those items which are not used for invasive procedures.
3.11.4 Sterilisation
This process kills
micro organisms including spores. It renders reusable medical devices
safe for the procedure to be undertaken. It is recommended that all items penetrating or in
contact with mucous membranes or body cavities must be sterile at point of use.
APPENDIX 1 – Section 3.11
CLASSIFICATION OF INFECTION RISK ASSOCIATED WITH THE DECONTAMINATION
OF MEDICAL DEVICES
Risk
Application
Recommendations
Items in close contact with a break in the skin Single Use disposable /
High
or mucous membrane or introduced into a Central Sterilisation
sterile body area.
Items in contact with intact skin, mucous Single Use disposable /
membranes or body fluids, particularly after
Intermediate
Sterilisation or high level
use on infected patients or prior to use on disinfection
immuno-compromised patients.
Single Use disposable /
Items in contact with healthy skin or mucous Cleaning
to
Low
membranes or not in contact with patient.
manufacturers
recommendations
APPENDIX 2 – SECTION 3.11
DECONTAMINATION OF EQUIPMENT CHART (A-Z)
A
B
EQUIPMENT OR SITE
ROUTINE USE
INFECTED PATIENT
Auroscope Ear Pieces
Single use - disposable is Single use - disposable is
the preferred option.
the preferred option.
Airways and endotracheal Steam sterilisation (CSSD)
Steam sterilisation (CSSD)
tubes.
or use disposable.
or use disposable.
Ambu –masks
Single use - disposable is Single use - disposable is
the preferred option
the preferred option
Baby scales
Renew paper after each Renew paper after each
baby and clean the scales baby or immediately after
with a detergent wipe at the soiling and clean the scales
end of each session.
with a detergent wipe at the
end of each session.
Baths, wash basins and Clean with detergent and Clean with detergent and
showers
water.
water.
Baby baths.
Wash with detergent and Wash with detergent and
warm
water/or
use
a warm
water/or
use
a
detergent wipe.
detergent wipe.
Babies changing mat
Change paper after each Clean mat after each baby.
baby, clean mat after each If
contaminated
with
session and if contaminated detergent and water, or
wash with detergent and detergent wipe.
water, or use a detergent
wipe.
Change paper after each
baby.
Bathing scoop
Clean with detergent and Contact IPCN
water or detergent wipe after
use. Store dry.
Bed frames
Clean
with
water
and Use
0.1%
Hypochlorite
detergent and dry, or use a solution.
detergent wipe.
Bed pans:
Community hospitals
Disposable.
Disposable.
Home patient
Disposable or wash with Disposable or wash with
detergent and water and air 0.1% Hypochlorite solution.
dry
Bed pan frames
Clean with detergent and Clean
with
0.1%
water and dry, or use Hypochlorite solution and
detergent wipe.
rinse.
Bottles and teats
Use disposable or return to Use disposable or return to
CSSD,
or
in
special CSSD.
circumstances
contact
ICPN.
Bowls (Surgical)
Return to CSSD
Return to CSSD
Bowls (Washing)
Wash with detergent and Wash
with
0.1%
water, rinse and dry after Hypochlorite solution rinse
each use. Store inverted and dry.
and separated.
A
B
EQUIPMENT OR SITE
ROUTINE USE
INFECTED PATIENT
Brushes (lavatory)
Store dry. Rinse thoroughly Store dry. Use o.1%
in toilet, flush and hang to Hypochlorite solution.
dry in open sided holder.
Bubble columns
Empty and clean monthly
wearing PPE.
Buckets
Wash with detergent and Use
1%
Hypochlorite
water, rinse and dry.
solution, rinse and store dry.
Carpets:
Community hospitals
Vacuum daily in patient Should not be nursed in
areas. Spillages should be carpeted rooms
cleaned
immediately,
removing any excess with
paper towels before washing
the area with detergent and
water. Following this, larger
spills may require steam
cleaning. All carpets should
be steam cleaned annually
Offices should be vacuumed
at least weekly.
Patient’s home
Detergent and water.
Couches (examination)
Wash with detergent and Contact IPCN
water, rinse and dry or use
detergent wipe. Cover with
disposable paper between
patients.
Curtains:
Inpatients
Send to central laundry Disposable or alternatively
every 6 months or sooner if change after an infection
soiled.
outbreak or sooner if soiled.
Vertical blinds
Vacuum monthly as good
practice or damp dust as per
manufacturers instructions.
Venetian blinds
Suggest wipe with detergent
and water monthly.
Damp dusting (all surfaces)
Detergent and water.
Wipe with 0.1% Hypochlorite
solution.
A
B
EQUIPMENT OR SITE
ROUTINE USE
INFECTED PATIENT
Denture pots:
Community hospitals
Single use - disposable is Single use - disposable is
the preferred option. If own, the preferred option.
clean daily with detergent
and water. Store dry.
Diaphragms
(Trial)
and Single use - disposable is Single use - disposable is
IUCD instruments
the preferred option.
the preferred option.
Drainage and suction jars:
1. Disposable vacuum
Use
Vernagel
gelling Use
Vernagel
gelling
containers.
granules. Place in double granules. Place in double
yellow bag for incineration.
yellow bag for incineration.
2. Suction jars.
Wash with detergent and Use disposable
water, rinse and store dry, or or send to CSSD.
send to CSSD.
3. Under-water seal bottles.
Return to CSSD.
Return to CSSD
Drains
Use washing soda crystals
Duvets
Plastic Type - Wash with Plastic Type - Wash with
detergent and water, rinse detergent and water, rinse
and dry.
and dry.
Duvet covers:
Community hospitals
Send to central laundry as Send to central laundry as
per policy.
per policy.
Patient’s home
Cotton Cover -
Wash as Cotton Cover -
Wash as
recommended
by
the recommended
by
the
manufacturer.
manufacturer.
Earphones
Wipe with detergent and Wipe with 0.1% Hypochlorite
water or alcohol wipes.
solution.
Ear pieces (Stethoscopes, Wipe with detergent and Wipe with detergent and
hearing aids)
water, then 70% alcohol water, then 70% alcohol
wipe.
wipe.
ECG leads and machines
Wipe with detergent and Wipe with detergent and
water, or detergent wipe.
water or detergent wipe.
Endoscopes
Thoroughly
clean
and Thoroughly
clean
and
disinfect
according
to disinfect
according
to
manufacturers instructions:
manufacturers instructions:
a) Between patients.
a) Between patients.
b) Before and after session b) Before and after sessions
(see Departmental Policy).
(see Departmental Policy).
Enuresis Mats
Single patient use - wash Single patient use - wash
with detergent and water, or with detergent and water.
follow
manufacturers
instructions.
Floor Mops:
Wash out thoroughly and Use disposable.
Community hospitals
hang to dry daily
GPs
Weekly.
A
B
EQUIPMENT OR SITE
ROUTINE USE
INFECTED PATIENT
Floors (dry)
Vacuum clean (disposable Vacuum clean (disposable
dust bag).
dust bag.
Check bags and filters.
Ensure filter changed.
Floor (wet)
Clean with detergent and Clean with detergent and
water, rinse and dry.
water, rinse and leave as
dry as possible.
Furniture and fittings
Damp dust with detergent Damp dust with detergent
and water.
and water.
Flower Vases
Wash the vases in water Contact IPCN
and
detergent
when
changing flowers and after
use. Store dry
Humidifiers
Drain once each day.
Drain once each day.
Refill with sterile bottled Refill with sterile bottled
water
or
follow water.
manufacturer’s instructions.
Instruments (Surgical)
Return to CSSD or if using Return to CSSD.
autoclave
ensure
compliance with policy.
Jugs and drinking glasses
Preferable
to
use
a Preferable
to
use
a
dishwasher
for
thermal dishwasher
for
thermal
disinfection or hot water and disinfection or hot water and
detergent.
detergent.
Mattresses and pillows
Clean plastic covers with Clean plastic covers with
detergent and water, and detergent and water, and
dry.
dry. If contaminated with
body
fluids
use
0.1%
This should be after patient Hypochlorite solution.
is discharged or monthly for
longer term stay, or sooner if
soiled.
Nebulisers - Disposable
Single patient use. Between Single patient use. Between
use wash the chamber and uses wash the chamber and
mask thoroughly with water mask thoroughly with water
and detergent, rinse and dry and detergent, rinse and dry
thoroughly. Replace weekly thoroughly. Replace weekly
or if heavily soiled.
or if heavily soiled.
Non-Disposable
Disinfect daily after cleaning, Disinfect daily after cleaning,
as above, by immersion in as above, by immersion in
0.1% Hypochlorite solution for 0.1% Hypochlorite solution for
20 mins. rinse with sterile 20 mins. rinse with sterile
water and dry with disposable water and dry with disposable
paper towel. Store dry.
paper towel. Store dry.
A
B
EQUIPMENT OR SITE
ROUTINE USE
INFECTED PATIENT
Nebuliser Tubing
Single patient use ONLY.
Single patient use ONLY
Razors - safety or electric
Use disposable or patients Use disposable or patients
own.
own.
DO NOT ALLOW SHARING DO NOT ALLOW SHARING
Rehabilitation equipment
Please
refer
to Please
refer
to
manufacturers instructions. manufacturers instructions.
Need to identify a planned Need to identify a planned
cleaning schedule in place. cleaning schedule in place.
Items should be wiped over Items should be wiped over
after
each
use
with after
each
use
with
detergent and water, or a detergent and water, or a
detergent wipe.
detergent wipe.
Scissors
Use single use disposable Use single use disposable
or autoclavable.
or autoclavable.
Sterile scissors must be Sterile scissors must be
used for wound dressings.
used for wound dressings.
Skin Disinfection:
Handwashing
in
clinical Liquid Soap.
Liquid soap / hand sanitizer,
areas (wards, sluice rooms
as advised by the IPCN.
and outpatients examination
rooms)
Hibiscrub (4% Chlorhexidine
Handwashing pre-operative
Hibiscrub (4% Chlorhexidine with detergent) or Povidone
with detergent) or Povidone Iodine surgical scrub.
Iodine surgical scrub.
Venepuncture
Clean
skin
with
70% Clean
skin
with
70%
Isopropyl alcohol and 2% Isopropyl alcohol and 2%
chlorhexidine gluconate and chlorhexidine gluconate and
allow to dry.
allow to dry.
Diabetics
-
Glucose Clean Digits with soap and
Monitoring
water only.
Skin Disinfection prior to IV Clean
skin
with
70% Clean
skin
with
70%
Cannulation
Isopropyl alcohol and 2% Isopropyl alcohol and 2%
chlorhexidine gluconate and chlorhexidine gluconate and
allow to dry.
allow to dry.
Slide sheets/hoist slings:
Community hospitals
Designate as single patient
use. Return to cental
laundry for cleaning after
use or sooner if soiled.
Patient’s home
Single person use. Return
to joint loans for laundering.
Space blankets
Disposable – single use.
Disposable – single use.
Sphygmomanometer cuffs
70% alcohol wipes.
70% alcohol wipes.
Staff cases
Wipe over with detergent
Community
and
water,
or
use
a
detergent wipe, weekly or
sooner if soiled, or follow
manufacturers’ instructions.
Telephone/telephone
Clean weekly with detergent Clean
after
use
with
trolley
and
water,
or
use
a detergent and water, or use
detergent wipe.
a detergent wipe. Wipe with
0.1% Hypochlorite
Solution.
Thermometers:
Electronic
Single use. Use disposable Single use. Use disposable
sheath.
sheath.
Toothbrushes
Single patient use only
Single patient use only
Toothmugs
Single use - disposable is Single use - disposable is
the preferred option. If own, the preferred option.
clean daily with detergent
and water. Store dry.
Toys
Wash with detergent and Wash with detergent and
water.
If
heavily water.
If
heavily
Soft
toys
are
not contaminated - dispose of contaminated - dispose of
recommended
item.
item.
Trolley Tops
- Dressings
Wash with detergent and Wash with detergent and
water, and dry. Wipe with water, and dry. Wipe with
alcohol wipe before use and alcohol wipe before and
between dressings. If visibly after each use.
contaminated
wash
with
detergent/water and dry.
Tourniquets
Wipe between each patient Disposable / Wipe between
with 70% alcohol wipe.
each
patient
with
70%
alcohol wipe.
Urinals:
Community hospitals
Single use disposable.
Single use disposable.
Patients own – community
Wash out with detergent and
water after each use.
Vaginal Specula
Send to CSSD or single use Send to CSSD or single use
disposable.
disposable.
Vaginal Cones -
Single patient use. Between Single patient use. Between
Disposable
uses clean with detergent uses clean with detergent
and warm water, rinse and and warm water, rinse and
dry,
then
soak
in
1% dry,
then
soak
in
1%
Hypochlorite for 20 minutes. Hypochlorite solution for 20
Rinse thoroughly with water minutes. Rinse thoroughly
and dry. Patient should with water and dry. Patient
keep the cone and bring to should keep the cone and
session.
bring to session.
Non-disposable
Autoclave
as
per Autoclave
as
per
instructions with equipment.
instructions with equipment.
Walking Aids:
Community
Clean periodically with dilute Wipe with 0.1% Hypochlorite
detergent and water.
solution if there is faecal
contamination, if not use
detergent and water.
Inpatients
Clean after each patient use
(single patient use) or when
grubby with detergent and
water or use a detergent
wipe.
WC
Wash with detergent and Wipe with 0.1% Hypochlorite
Lavatory seats
water, and dry after each solution if there is faecal
Commode chairs
patient
use
or
use
a contamination, if not use
Raised toilet seats
detergent wipe.
detergent and water.
Wheelchairs
Clean periodically with water Clean with detergent and
and detergent, and dry.
water, and dry.
X-Ray Equipment
Damp dust with detergent Wipe with 0.1% Hypochlorite
and
water
or
use
a solution.
detergent wipe.
APPENDIX 3 – Section 3.11
DECLARATION OF CONTAMINATION STATUS
Prior to the Inspection Servicing. Repair or Return of Medical and Laboratory Equipment
To:
Make and description of Equipment
Model/Serial/Batch No:
Trust's Ref:
Recipient's Service or Returns
or Order No:
Authorisation Reference or Contact Name:
Tick box A if applicable. Otherwise complete all parts of B, providing further information as requested or appropriate.
A
This equipment/item has not been used in any invasive procedure or been in contact with blood,
other body fluids, respired gases or pathological samples. It has been cleaned, in accordance with
the Control of Infection Disinfecting Policy, in preparation for inspection, servicing, repair or
transportation.
B (1)
Has this equipment/item been exposed internally or externally to hazardous materials as indicated below?
Provide further details here:
YES/NO Blood, body fluids, respired gases, pathological samples:
YES/NO Other biohazards:
YES/NO Chemical or substances hazardous to health:
YES/NO Other substances hazardous to health:
YES/NO Other hazards:
(2) Has this equipment/item been cleaned and decontaminated?
YES
Indicate the methods and materials used:
NO
This equipment could not be decontaminated.
Indicate reason:
Advice should be obtained from your Head of Department or Control of Infection Manager before any dismantling,
inspection, servicing or repair works carried out.
Such equipment must not be returned/presented without the prior agreement of the recipient whose reference or
contact name must be given above.
(3) Has the equipment/item been suitably prepared to ensure safe handling /transportation?
YES/NO, Indicate Reason:
I declare that I have taken all reasonable steps to ensure the accuracy of the above information, in accordance with
HSG(93)26.
Authorised signature:
Unit:
Name (printed):
Dept:
Position:
Tel No:
Date:
Copies of Certificates to be sent to:
Top Copy- To accompany equipment, Second Copy -To remain in the certificate book for reference
Section
1
Page
50(a)
HMP-71
This page is intentionally left blank
SECTION 4 - DISEASE RELATED INFORMATION
4.1 BLOOD BORNE VIRUSES
In Great Britain, four main types of Hepatitis are recognised B, C, D and E. All
hepatitis infections are notifiable to the Consultant in Communicable Disease Control
(see Section 1).
Hepatitis B and C infections are major causes of chronic liver disease and liver
cancer across much of the world. While the United Kingdom has been classified
as a very low prevalence country for these infections, they still pose a significant
challenge in terms of potentially preventable mortality and morbidity.
4.1.1 Hepatitis B
The severity of Hepatitis B (HBV) disease ranges from mild infections that can only
be detected by liver function tests, and/or the presence of serological markers of
infection (see Figure 4), to fulminating cases of acute hepatic necrosis. The
incubation period is 40-160 days, average is 60-90 days, and, of those cases
admitted to hospital, the fatality rate is 1%. The variation in incubation period is
related to the inoculum and the mode of transmission as well as to host factors. The
prognosis for hepatitis B carriers who develop progressive liver disease is uncertain;
some develop cirrhosis and are at increased risk of developing hepatocellular
carcinoma.
Understanding Serological Markers
MARKER
FULL NAME
INDICATES
HBsAg
Hepatitis B surface antigen Carrier or current infection.
HBeAg
Hepatitis B ‘e’ antigen
Current
infection/highly
infectious/chronic
carrier.
Anti-HBsAg
Antibody to HBsAg
Previous infection/immunisation/immunity.
Anti-HBeAg
Antibody to HBeAg
Hepatitis B surface antigen carrier with low
(anti-HBe)
risk of infectivity.
Anti-HBc
Antibody to Hepatitis B Persons who have had hepatitis B infection in
core antigen
the past or have acute infection. It is not
induced by immunisation.
IgM Anti-HBc
Igm antibody to Hepatitis B Acute or recent Hepatitis B infection.
core antigen
Hepatitis
B Virus DNA
Viral replication and high infectivity.
virus DNA
Patients who exhibit persistent hepatitis B surface antigen (HBsAg) for more than 6
months are defined as chronic carriers, although a small proportion (I-2%) may clear
the virus each year. Chronic carriers have traditionally been divided into those of
high, intermediate and low infectivity, having in addition either the soluble ‘e’ antigen
(HBeAg), no ‘e’ markers, or antibodies to the ‘e’ antigen (HBeAb) respectively. It is
now recognised, however, that some chronic carriers may be ‘e’ antigen negative yet
highly infectious due to the presence of mutant strains of HBV which are unable to
express ‘e’ antigen.
Treatment with interferon may clear ‘e’ antigen in a proportion of cases.
In developed countries Hepatitis B infection is usually acquired during adulthood,
predominant routes being sexual and parental. About 2-10% of those infected as
adults become chronic carriers with hepatitis surface antigen (HBsAg) persisting
longer than 6 months. Persistent HBsAg, and chronic infectious carriage of Hepatitis
B, is more frequent in those infected as children and rises to 95% in neonates
infected perinatally. Among carriers of the virus those in whom HB e-antigen
(HBeAg) is detectable are most infectious. Those with antibody to HBeAg (anti-HBe)
are, generally, of low infectivity.
The blood of those infected with Hepatitis B has been shown to be infective many
weeks before the onset of first symptoms and remains infective through the acute
clinical course of the disease and during the chronic carrier state, which may persist
for years. Hepatitis B Virus Surface Antigen (HBsAg) may be found in blood and
virtually all body fluids of patients with acute hepatitis B and carriers of the virus, but
blood, semen and vaginal fluids are mainly implicated in the spread of HBV Infection
(Figure 4).
4.1.2 Vaccination and Control
The Control of Substance Hazardous to Health (COSHH) (1994) Regulations require
all employers to make their own risk assessments and bring into effect measures to
protect their employees. Therefore, it is the employer that decides whether there is a
risk of infection of hepatitis B within the work place, and what measures are required,
e.g. vaccination education and protective clothing.
The primary course consists of three injections of the vaccine, the second following
one month after the first, with the third administered at six months. More rapid
courses are now available, which are useful, for example, when the traveller presents
late for vaccination or as prophylaxis following exposure to the virus. Each course
consists of three injections either given at monthly intervals with a booster at 12
months, or 0, 7, 21 days, also with a booster at 12 months. Antibodies can be
checked 4 weeks after course completion to determine whether or not there has
been a response.
Hepatitis B infection can be transmitted from infected mothers to their babies at, or
around, the time of birth (perinatal transmission). Babies acquiring infection at this
time have a high risk of becoming chronic carriers of the virus. The development of
this carrier status can be prevented in around 90-95% of cases by appropriate
immunisation of babies born to infected mothers. The recommended vaccination
schedule of infants born to Hepatitis B Surface Antigen (HBsAg) Positive women
(identified through antenatal screening) is shown in Figure 5.
Breast Feeding: There is no contraindication to breast feeding when a baby born to
a carrier mother begins immunisation at birth and proceeds with a complete course of
immunisation.
Vaccination of infants born to hepatitis B surface antigen positive
women (identified through antenatal screening)
MOTHER
Hepatitis B Surface antigen
positive (HBsAg)
Anti HBe
positive
Yes
HBEAG POSITIVE
or
HBeAg negative and
Give Hepatitis B specific
Anti HBe negative
Immune Globulin within
30 minutes of birth
OR
(contralateral site
from
vaccination)
Yes
GIVE HEPATITIS B
1st dose vaccine at
birth
2nd dose at 1 month of age
3rd dose at 2 months of age
4th dose at 12 months of age
Check antibody level 2-4
months after third dose
Response rates to the vaccine are at around 95% in young adults (especially
women), children and newborn babies, whereas the rate may fall in older men to
around 80%, with the immuno-suppressed patient showing the lowest rates.
However, immunity is known to decrease with age, especially in those over 40 years,
but what is not known is whether or not boosters are necessary for babies and
children to provide life-long immunity.
It is normally accepted that protective anti-HBs titre levels should be above 100
miu/ml, however vaccines whose anti-HBs titres are in excess of 500 miu/ml are
likely to maintain adequate levels for at least 5 years. It should be noted that
variations in virus challenge doses and infectivity of the source has resulted in the
impossibility of defining a minimum protective level of anti-HBs. Low or non-
responders need to be informed that they are not protected and should seek passive
immunisation if they suffer accidental exposure (via needlestick injury, etc).
Health care workers who have been successfully immunised should be boosted
following accidental exposure, unless they are definitely known to have adequate
protective anti-HBs levels. (See Section 2 – 2.5.)
Healthcare workers who carry blood borne viruses will be advised regarding their
involvement in exposure prone procedures (EPP) by their Occupational Health
Department.
4.1.2a Index case contacts
Household and sexual contacts of the index case should be vaccinated with an,
accelerated course. Although screening to exclude people with pre-existing anti-HBs
is not required prior to immunisation, it may be desirable where there are high levels
of pre-existing infection.
Passive immunisation with specific immunoglobulin can be administered if immediate
protection is required. Hepatitis B Immunoglobulin (HBIG) is used and it is
administered at the same time as the hepatitis B vaccination using a different site.
HBIG must be given as soon as possible, preferably within 24 hours of the exposure
(needle stick injury) or following sexual exposure, it is recommended that it be given
within 14 days. If infection has already occurred, severe illness, and the
development of carrier status, may be prevented.
4.1.3 Hepatitis C (HCV)
The incubation period is about six to eight weeks, but antibodies may not appear for
a further four to six weeks. Although infection is usually asymptomatic, HCV results
in the development of a chronic carrier state in at least 85% of cases. Chronic liver
disease, including cirrhosis and hepatocellular carcinoma, develops in approximately
70% of all HCV infected persons.
Hepatitis C is the main cause of what was previously known as Non A - Non B
hepatitis. HCV is most frequently acquired by direct blood to blood contact and the
commonest mode of transmission in the UK is the sharing of blood contaminated
injecting equipment by injecting drug users. Both sexual and perinatal transmission
can occur but, in general, these are less efficient modes of transmission. The
incidence of HCV amongst intravenous drug users is believed to be high.
Routine screening tests for HCV detect antibodies to the virus. If individuals are
found to be anti-HCV positive, additional tests are carried out, looking for HCV RNA
by polymerase chain reaction (PCR) in order to determine whether they are viraemic.
Treatment with Interferon plus Ribavirin may clear the infection, but a proportion will
relapse when treatment is stopped. The involvement of a hepatologist should be
considered.
There is no effective vaccine against HCV.
It is recommended that individuals with HCV be vaccinated against hepatitis A
virus. As the liver may already compromised, cirrhosis may be advanced by
hepatitis A infection.
Long-term follow up is recommended for HCV. As new information is
becoming available, individual assessment for medical intervention is, ongoing.
4.1.4 Hepatitis D (HDV)
Hepatitis D causes infection only in those who have active hepatitis B infection.
Hepatitis D infection can occur either as co-infection with HBV or as a superinfection
of an HBV carrier. Since hepatitis D depends on an HBV infected host for replication,
prevention of hepatitis B infection by immunisation will also prevent hepatitis D
infection.
4.1.5 Human Immuno-deficiency Virus (HIV)
Human immuno-deficiency virus interferes with the body's immune response to
infection. An individual infected with HIV may experience an initial acute illness
followed by a period in which there are no signs or symptoms, although antibodies to
the virus may be detected in the blood. People with HIV infection can remain well for
several years.
Ultimately, if the virus continues to replicate, there is reduction of CD4 cells with a
resultant immunodeficiency, infected persons becoming at increased risk of
opportunistic infections and certain tumours.
Routine screening tests for HIV detect antibodies to HIV-1 or HIV-2. Such tests
should only be carried out with informed consent. If the screening test is reactive,
this result is then confirmed by two different additional assays. A provisional report is
issued requesting an additional blood sample before sending out a final HIV report.
All individuals, other than neonates, who have antibodies to HIV also have the virus;
viral nucleic acid may be detected by polymerase chain reaction (PCR) and the level
of viraemia quantified. It should be stressed that antibodies to HIV do not appear
immediately after primary infection. The median time is 3-6 weeks but, during this
‘window period’, patients may have a high viral load and be highly infectious.
In general, HIV is the least infectious of the blood borne viruses, with HIV-2 being
considerably less infectious than HIV-1.
4.1.6 Acquired Immune Deficiency Syndrome (AIDS)
Acquired immune deficiency syndrome is diagnosed when a person with HIV
infection is found to have one or more of a number of specific infections, such as
Pneumocystis pneumonia, Kaposi sarcoma or Tuberculosis. These infections are
described as opportunistic, and become life threatening due to the breakdown of the
individual’s immune system or the direct effect of the virus on the nervous system.
Control is by prevention of acquisition of the virus. This is accomplished by applying
vigorous universal infection control precautions, education about safe sex and the
use of needle exchange facilities for intravenous drug users.
Post exposure prophylaxis for HIV is also available (see Section 2 – 2.5).
REFERENCES - Section 4.1
Advisory Committee on Dangerous Pathogens (1996) ‘Protection Against Blood-borne
infection in the Workplace, HIV and Hepatitis’ - London MMSO.
Bedford H, Elliman D, 1998, Childhood Immunisation: A Review volume 1. Health
Education Authority.
Benenson A S, Editor (1995) ‘Control of Communicable Diseases Manual’, sixteenth
Edition, American Public Health Association.
CDSC/PMLS Hepatitis Subcommittee (1993) Hepatitis C Virus. Guidance on the
risks and current management of occupational exposure. CDR Weekly 3(10)
September 135-139.
Department of Health 1996 ‘Immunisation against infectious Disease’ Salisbury DM,
Begg N.T. (Eds) London HMSO.
Greenwood D, Slack R, Peutherer J. (Eds) 1997 ‘Medical Microbiology’ 15th edition;
Churchill Livinstone UK.
Kassianos G. C.(1998) ‘Immunisation : Childhood and travel health’ 3rd edition.
Oxford: Blackwell Science Ltd.
NHS Executive HSC 1998/063 Recommendations of the Expert Advisory Group on
AIDS and the Advisory Group on Hepatitis. Guidance for Clinical Healthcare
Workers - Protection Against Infection with Blood Borne Viruses.
Sagliocca L, Amoroso P, Strffolini T, Adamo B, Tosti ME, Lettieri G, Esposito C,
Buonocore S, Pierri P, Mele A. ‘Efficacy of hepatitis A vaccine in prevention of
secondary hepatitis A infection: a randomised trial’.
Lancet (1999): 353;1136-9.
The Senate of Surgery of Great Britain and Ireland (1998) ‘Blood borne viruses and
their implications for surgical practice and training’
Senate Paper 4 – September
1998, London: McKenzie Graham.
UK Health Departments (1997) PL ICO (97) 1 - Guidelines on Post-Exposure
Prophylaxis for Healthcare Workers Occupationally Exposed to MIV.
4.2 MENINGOCOCCAL MENINGITIS/SEPTICAEMIA
The infective agent is Neisseria meningitidis. Different strains of meningococci are
groups A, B, C, Y and W135. The most common strains of meningococcal meningitis
in the UK are groups B and C.
Meningococcal disease can affect any age group although babies, children and
young people in their teens and early 20’s are most at risk. It usually presents as
sporadic cases, but localised outbreaks do occur. Cases occur throughout the year,
but the incidence is highest in winter.
Droplets from nose or throat of infected persons transmit the organism from one
person to another. Between 10-25% of the population at any one time are
asymptomatic carriers. Carriage rate varies from time to time and tends to be higher
in closed communities such as schools, colleges and army barracks. The incubation
period varies from 2-10 days, however it is commonly 3-4 days. The period of
communicability is until the meningococci bacteria are eliminated from the
nasopharynx. This is usually within 24 hours of Rifampicin therapy. Penicillin
treatment does not reliably eradicate the organism from the nasopharynx.
Meningococcal disease and all types of meningitis are statutory notifiable diseases
(Section 1, Table B). The Consultant in Communicable Disease Control (CCDC)
should be notified by telephone, by the Doctor in charge, of all cases, or suspected
cases, of meningitis and meningococcal disease, in order that contact tracing is
promptly carried out.
4.2.1 Vaccination
4.2.1a Meningococcal Group C Conjugate Vaccine
This was introduced in 1999 and the objective is to achieve a major impact on Group
C Neisseria meningitidis, which is responsible for 40% of cases of meningococcal
disease in this country. Most other cases are from Group B infection and there is, as
yet, no effective vaccine against sero-group B.
It is immunogenic in children from 2 months of age and induces an effective
immunological memory. Babies 2, 3 and 4 months: three doses of the new vaccine,
given with DTP, Hib and Polio vaccines. No booster is recommended for the
meningococcal Group C conjugate.
4.2.1b Plain Polysaccharide Meningococcal Group A and C vaccines
The meningococcal Group plain polysaccharide A and C vaccines are effective for 3
to 5 years from 18-24 months of age. Studies have shown that boosting with a
second or third dose in adults tends not to produce a response. Pasteur Merieux
Vaccine may be boosted every 3 years, SmithKline Beecham vaccine every 5 years.
Travellers to Sub-Saharan Africa from Senegal and Gambia in the west to Ethiopia
and Somalia in the east (anywhere within the meningitis belt) are advised to be
vaccinated with the plain A and C polysaccharide, if visiting for longer than one
month. Protection is required for the ‘A’ sero-group portion of the vaccine, which is
not available separately.
It is particularly important to be vaccinated if the traveller is to be in close contact with
the local population or staying for long periods. On this basis the risk is usually small
for package tourists. Travellers to Saudi Arabia attending Mecca during the Haj
annual pilgrimage require immunisation for immigration purposes and will be required
to produce a certificate on arrival and when obtaining a visa. Quadrivalent vaccine
gps A,C,W125 and Y is recommended for these travellers, with further advice from
the regional epidemiologist. The A and C vaccine is effective from 7 days.
A subject who has already received a scheduled conjugate vaccine may require the
travel polysaccharide vaccine. This can be administered after a period of two weeks.
Giving conjugate vaccine after polysaccharide vaccine - If the polysaccharide vaccine
has been given first then a gap of 6 months is suggested before the conjugate
vaccine is administered.
University students e.g. first years not already vaccinated should be given the
conjugate gp. C vaccine
4.2.2 Control
4.2.2a Index Case Contacts
The Health Protection Agency (HPA) has developed a policy for the control of
meningococcal meningitis and septicaemia. A précis of this policy has been
included, to give an understanding of the present action taken following the
presumptive diagnosis of a case in Cambridgeshire.
Definition of an outbreak, or cluster, of meningococcal disease exists when there are
two or more linked cases, within a four-week period.
The index case should be treated with antibiotics as soon as a presumptive diagnosis
is made. The general practitioner should start treatment with Benzylpenicillin if a
diagnosis of meningococcal disease is suspected, prior to admission to hospital. As
Benzylpenicillin will not reliably eradicate the organism from the nasopharynx of the
patient, a two-day course of Rifampicin should be given prior to discharge from
hospital to ensure eradication. This prevents the re-introduction of the organism to
the household and other close contacts.
Once the Health Protection Unit has been notified of an individual (presumptive) case
the communication and information cascade will commence for which the CCDC is
responsible.
• A professional from the HPU office will be available, during office hours, to
answer questions from any professionals (see Section 1 - 1.4).
• The HPU will carry out any contact tracing necessary outside of the hospital.
The hospital will provide prophylaxis to household contacts able to visit the
hospital.
The aim of prophylaxis is to prevent secondary cases by eliminating nasopharyngeal
carriage of N. meningitidis in close contacts of the index case, thereby reducing the
risk of invasive disease in other susceptible members of the household.
Chemoprophylaxis should be given as soon as possible (ideally within 24 hours of
diagnosis of index case) to all close contacts. Rifampicin is licensed for this
purpose, but ciprofloxacin is an acceptable alternative and cetriaxone should be used
for pregnant women.
4.2.2b Prophylaxis
Is recommended for:
All household contacts, i.e. living in the same house during the preceding 7
days before the illness occurred.
Kissing contacts (girl/boyfriends) of the case also within the last 7 days.
Room mates, close friends in boarding schools or other residential institutions
if they share a dormitory.
A child-minder looking after one or more children for many hours daily – may
fall into the ‘household’ setting.
Adult
over 12 years
Ciprofloxacin 500mg as single dose
Rifampicin 600mgs BD for 2 days
Pregnant female
Ceftriaxone 250mgs IM as single dose
Child
over 1 year
Rifampicin 10mg/kg BD for 2 days
Infants under 1 year
Rifampicin 5 mg/kg BD for 2 days
Is not recommended:
After a single case in a school, playgroup or nursery, but it is important to give
information.
Medical and nursing staff caring for the case, unless they have given mouth-
to-mouth resuscitation or encountered splash contamination.
The hospital clinician caring for the index case will normally be responsible for
provision of prophylaxis for household contacts (able to visit the hospital) within 24
hours of a diagnosis being made. The Health Protection Unit is responsible for
identifying all non-household close contacts. The CCDC or officer on call will inform
the GPs of the other contacts, who have been identified. These GPs will be
responsible for prescribing the prophylaxis. When there are contacts in other Health
Districts, it is the responsibility of the CCDC to provide details of contacts requiring
prophylaxis in that area to the appropriate CCDC.
Single case occurring in child attending a pre-school group
Family household contacts should be managed as previously described. Information
about the case, and about meningococcal disease, should be disseminated to carers,
parents and local GPs, because early diagnosis can improve outcome.
Single case occurring among those attending primary or secondary schools,
colleges or universities
Prophylaxis with antibiotics or vaccine should not be offered to contacts in the
educational setting, unless the proximity and duration of contact has been
comparable to that experienced in households (e.g. dormitory contacts in a boarding
school).
Immediately after a case has arisen in a nursery, playgroup, school or other
institution, the Consultant for Communicable Disease Control or other professional
from the department should liaise closely with the Principal to inform parents that:
A case has occurred.
The chance of another case is very small.
Antibiotics are not normally given to students after a single case.
It is important to know the signs and symptoms of Meningococcal
Disease.
When two or more cases occur in secondary schools, higher learning institutions and
other institutional settings, decisions about further actions should involve the Health
Protection Agency.
A polysaccharide meningococcal vaccine for protection against sero-group A and C
is available and licensed for use in the UK (it is now mostly used as a travel vaccine).
A quadrivalent vaccine for protection against A, C, W, Y is also available on a named
patient basis, though not licensed for routine use. If the index case is confirmed as
group C or A (or W135, Y) vaccination should be offered to those contacts who were
given oral antibiotic prophylaxis. The CCDC will make a decision on which vaccine
should be administered, however, this will usually be the conjugate vaccine rather
than the polysaccharide.
REFERENCES-Section 4.2
Borrow R, Clark S, Findlow J, Kaczmarski E B, Richmond P, Miller E, Jones G,
Barker M, McCann R, Hill J - ‘Immunological hyporesponsiveness in adults induced
by licensed meningococcal A/C polysaccharide vaccine’ Unpublished presentation,
12 May 1999; One-day symposium – Immunology and meningococcal disease,
Queens Medical Centre, Nottingham.
Cartwright K A V, and Ala’Aldeen D A A, (1997) ‘Neisseria meningitidis: Clinical
aspects’ review article, Journal of Infection 34, pp. 15-19.
Cartwright K A V, Hunt D, Fox A, (1995) ‘Chemoprophylaxis fails to prevent a second
case of meningococcal disease in a day nursery’ CDR Review - Communicable
Disease Report, 5 (13), 8 December, p R199.
CDR Review (1997) ‘Management of clusters of meningococcal disease’ CDR
Review - Communicable Disease Report, 7 (1), 10 January, pp R3-5.
CDR Review (1995) ‘Control of meningococcal disease: guidance for consultants in
communicable disease control’, Communicable Disease Report, 5 (13), 8 December,
pp R189-R195.
CDR (Communicable Disease Report) (1999) ‘First quarter’ CDR weekly
(Communicable Disease Report), 9 (17), 23 April, p.148.
Chin J, 2000 Control of Communicable Disease Manual 17th Ed Amer. Public Health
Assn
Department of Health ‘Meningococcal C (Meningitis C) vaccine factsheet, October
1999
pp 1-6.
Fallon R J, Slack R C B, (1997) ‘Neisseria and moraxella (branhamella)’ chapter 24
Medical Microbiology: a guide to microbial infections: pathogenesis, immunity,
laboratory diagnosis and control, 15th edition. Greenwood D, Slack R CB, Peutherer
J F. Editors, London: Churchill Livingstone, pp 243-251.
Greenwood B M, (1996) ‘Meningococcal infection’ part 7.11.5: Oxford textbook of
medicine; Volume 1, 3rd Edition, Weatherall D J, Ledingham J G G, Warrell D A.
Editors; Oxford: Oxford University Press, pp. 533-544.
Greenwood D (1997) ‘Morphology and nature of micro-organisms’ chapter 2
Medical Microbiology: a guide to microbial infections: pathogenesis, immunity,
laboratory diagnosis and control, 15th edition. Greenwood D, Slack R C B,
Peutherer J F. Editors, London: Churchill Livingstone, pp 8-24.
Riordan T (1997) ‘A college outbreak of group C meningococcal infection: how widely
should investigation and prophylaxis extend?’ CDR Review - Communicable Disease
Report, 7 (1), 10 January, pp R5-R9.
Wenzel R P, Editor (1997) Prevention and control of nosocomial infections (3rd
edition), Maryland USA: Williams and Wilkins, pp. 413-414.
4.3 CREUTZFELDT-JAKOB DISEASE AND VARIANT CREUTZFELDT-JAKOB
DISEASE (CJD & VCJD)
4.3.1 Background
Creutzfeld Jacob Disease (CJD) is one of a group of conditions known as
transmissible spongiform encephalopathies. They are caused by agents
currently thought to be infectious proteins known as prions, which do not
share the normal properties of viruses and bacteria and are resistant to
conventional chemical and physical decontamination methods.
The greatest risk of transmission is from neural tissue of an infected
individual. Spinal fluid and lymphoreticular tissues pose a lower risk and
blood, other body fluids and most other tissues a negligible risk of
transmission. Although these conditions do not appear to be highly
contagious, there have been documented cases of spread via contaminated
medical instruments or contaminated human pituitary hormone.
Standard infection control practice is sufficient in most circumstances to
prevent spread. Isolation of patients with CJD is not necessary. Additional
precautions are necessary during invasive interventions involving the brain,
spinal cord and eye on a patient known, suspected or at risk of having CJD.
4.3.2 Symptomatic patients
• Patients who fulfil the diagnostic criteria for definite, probable or possible CJD
or vCJD
• Patients with neurological disease of unknown aetiology who do not fit the
criteria for possible CJD or vCJD but where the diagnosis of CJD is being
actively considered
Asymptomatic patients at risk from familial forms of CJD linked to genetic
mutations
• Individuals who have been shown by specific genetic testing to be at
significant risk of developing CJD or other prion disease
• Individuals who have a blood relative known to have a genetic mutation
indicative of familial CJD
• Individuals who have or have had two or more blood relatives affected by
CJD or other prior disease
4.3.3 General Ward procedures
Available epidemiological evidence does not suggest that normal social or
routine clinical contact with a CJD or vCJD patient presents a risk to
healthcare workers, relatives and others in the community. Isolation of
patients with CJD or vCJD is not necessary and they can be nursed in an
open ward using standard infection control precautions in line with those used
for all other patients.
4.3.4 Blood
Careful attention to standard infection control precautions will minimise any
risks from blood. Drug administration by injection should involve the same
precautions used for all work of this type with any patient i.e. avoidance of
sharps injuries and other forms of parenteral exposure and the safe disposal
of sharps and contaminated waste.
4.3.5 Invasive medical procedures and sample labelling
Because of the unusual resistance of the TSE agents, single use disposable
equipment should be used wherever possible, and all other small items of
equipment contaminated whilst obtaining specimens should be destroyed by
incineration (please refer to waste guidance).
4.3.6 Spillages
The infectious agent associated with TSEs is unusually resistant to
inactivation techniques. Dilution is the most important element in cleaning up
spillages in general.
4.3.7 Occupational exposure
Although cases of CJD/vCJD have been reported in healthcare workers, there
have been no confirmed cases linked to occupational exposure. However, it
is prudent to take a precautionary approach. The highest potential risk in the
context of occupational exposure is from exposure to high infectivity tissues
through direct inoculation (e.g. as a result of ‘sharps’ injuries, puncture
wounds or contamination of broken skin) and exposure of the mucous
membranes (e.g. conjunctiva) should also be avoided.
Healthcare personnel who work with patients with definite, probable or
possible CJD or vCJD, or with potentially infected tissues, should be
appropriately informed about the nature of the risk and relevant safety
procedures.
4.3.8 Storage of instruments for research purposes
In some cases, instruments which are destined for disposal by incineration
may be retained for uses in research. Anyone considering such a course of
action should contact the Surgical Instrument Store, Health Protection
Agency, Porton Down on 01980 612643 (answer phone on out-of-hours) to
discuss whether it would be helpful to retain a particular instrument for
research, and where and how it should be stored.
4.3.9 Community healthcare
No special measures over and above standard infection control precautions
are required for caring for CJD patients in the community. Although CJD and
vCJD are not though to present a risk through normal social or routine clinical
contact, those caring for patients at home should be advised of the standard
infection control practices that would apply to any patient.
Spillages of body fluids, including blood, should be removed using absorbent
towels e.g. kitchen paper and the surface washed thoroughly with detergent
and warm water. Disposable gloves and an apron should be worn.
4.3.10 Dentistry
The risks of transmission of infection from dental instruments are thought to
be very low provided optimal standards of infection control and
decontamination are maintained. General advice on the decontamination of
dental instruments can be found in guidance prepared by the British Dental
Association (BDA) on ‘Infection control in dentistry’.
There is no reason why any patients or their relatives should be refused
routine dental treatment. Such people can be treated in the same way as any
member of the general public.
4.4 TUBERCULOSIS
Tuberculosis (TB) is an infectious disease caused by
Mycobacterium tuberculosis and rarely by
Mycobacterium bovis, or
Mycobacterium africanum. The lungs are the
most frequently affected site although miliary TB (the result of blood borne spread)
may affect the meninges, kidneys or bone.
TB infection is said to occur when TB bacteria are in the body, but the immune
system controls them and the infection heals spontaneously. Disease may develop
over the coming weeks and months and in about 10% of people infection reactivates
in later life causing active disease. People with TB infection have no symptoms, and
cannot spread TB to others.
TB disease is said to occur when TB bacteria are present in the body and cause
symptoms making the person feel unwell. These symptoms may include a cough,
weight loss, fever, fatigue, night sweats and loss of appetite. Sometimes people with
TB in the lungs may also cough up sputum streaked with blood. Symptoms in some
people may be only mild and in others more severe, but all will be likely to spread the
infection before treatment is commenced.
4.4.1 Transmission
The infection can be acquired in several ways, but by far the most important is the
inhalation of organisms in airborne droplets coughed by a person with TB of the
lungs. Prolonged, close contact is usually required for transmission of infection from
person to person. The people likely to be affected would include people living in the
same house as the case and those with whom they socialise on a frequent basis.
The type of work environment will be assessed for risks to colleagues from the case.
4.4.2 Prevention
Prompt identification of cases and contacts is necessary to reduce the spread of
infection.
The notification of each case to the Health Protection Unit, by the
clinician in charge of the case is a statutory requirement, and facilitates the
contact
tracing process where it is not carried out by respiratory nurses. The National
Enhanced Surveillance forms, should be used for this purpose.
Bacillus Calmette-Guerin (BCG) immunisation confers a degree of immunity and has
been shown to protect against TB with an efficacy of greater than 70% in British
schoolchildren, with protection lasting at least 15 years. There is a schools
programme of immunisation within Cambridgeshire.
Neonatal BCG is recommended by the DoH and British Thoracic Society (BTS) for
babies born to immigrants from countries with a high prevalence of TB, i.e. where
local incidence exceeds 40/100,000 population per year.
Health care workers who have contact with infectious patients or their specimens
should also be protected by immunisation.
All entrants to the UK planning to stay longer than 6 months should be screened for
TB Port forms are part of this process and if appropriate entrants will be contacted to
attend a chest clinic for investigation.
4.4.3 Control
Early identification and treatment of cases especially sputum
smear positive is vital
in the control of TB, and good communication networks between health care
professionals is essential. Prompt identification of
close contacts is necessary for
screening purposes. Screening of new arrivals and refugees and asylum seekers
should be undertaken.
4.4.4 Treatment
This is usually for a minimum of 6 months and during this period patients should
receive regular checks not only to ensure that they are compliant with their
medication but to provide support and note if there are any side effects. Patients
who have infectious TB are not usually considered infectious after 2 weeks of anti-
tuberculous therapy.
Multi-Drug Resistant TB
This can occur if treatment is not completed as prescribed.
Drug resistance is more common in people who:
have spent time with someone with drug resistant TB;
do not take medication regularly;
do not take all the prescribed medication;
develop TB disease again, after having taken TB medication in the past;
come from areas where drug resistant TB is prevalent.
Multi-Drug Resistant TB is a very serious problem, which must be monitored by a
specialist respiratory clinician in consultation with the Consultant Microbiologist.
4.4.5 Quick reference guide
A quick reference guide for health professionals is also available from the NICE
website (
WWW.NICE.ORG/CG033QUICKREFGUIDE) or from the NHS Response
Line (telephone 0870 1555 455; quote reference number N1008).
REFERENCES – Section 4.4
UK Health Departments - Immunisation Against Infectious Disease (1996).
The Interdepartmental working Group on TB - The Prevention and Control of TB in
the UK
Recommendations for the Prevention and Control at Local Level (DoH 1996).
Joint Tuberculosis Committee of the British Thoracic Society, Control and Prevention
of TB in the UK, Code of Practice (2000), Thorax,55, pp 887-901.
Joint Tuberculosis Committee of the British Thoracic Society, Guidelines on the
Management of TB and HIV Infection in the UK, BMJ (1992) 304, pp 1231-1233.
Joint Tuberculosis Committee of the British Thoracic Society. Chemotherapy and
Management of TB in the UK,Thorax (1998) 53, pp 536-548.
APPENDIX 1 – Section 4.4
Isolation decisions for patients with suspected respiratory TB
Known or
suspected MDR
TB, based on risk
assessment?
Admit to single room
Admit to negative-pressure room
Sputum smear
Yes
positive (1 or
No
more from 3
samples)?
Yes
No
No
Risk for
Yes
Risk for
MDR TB?
MDR TB?
Does ward
No
Yes
have immuno-
compromised
patients?
Negative-pressure
Single
r
oom (irrespective
room on
of HIV status).
ward
Molecular probe
Negative-
for rifampicin
pressure
resistance
Standard
room
ward
4.5 GASTRO-INTESTINAL DISEASES
4.5.1 Hepatitis A
The illness caused by Hepatitis A is usually mild, symptoms usually improve and
disappear as jaundice develops. Fulminating disease can occur, but this is found to
be overall less than 0.5%. Only 5% of children under 3 years develop jaundice, but
this rises to about 50% in adults. The fatality rate also rises with age to
approximately 2% in adults.
The Department of Health recommends vaccination against Hepatitis A for certain
occupational groups such as sewerage and laboratory workers who may come into
contact with it during their work. There is no evidence available that identifies health
care workers as high risk, therefore, routine vaccination is not recommended. Other
areas such as residential institutions for those with learning disability and challenging
behaviours should conduct a risk assessment and provide measures to protect both
staff and residents.
A much more serious illness may occur when patients with chronic liver disease
become infected. Although these people are at no greater risk of acquiring Hepatitis
A than the rest of the population they should be considered for immunisation. This
group may include intravenous drug abusers with chronic liver disease and
haemophiliacs. The
local environmental office must be informed of cases of
Hepatitis A.
4.5.2 Vaccination and Control
Hepatitis A is not part of the routine UK childhood schedule.
The regime for adults is a single dose of vaccine. A booster dose at 6-12 months
results in a substantial increase in antibody titre and will give immunity for up to 10
years. The regime for children up to 15 years is a single dose of vaccine, however,
immunity can be boosted by giving a second dose between 6-12 months.
Active protection for Hepatitis A normally starts approximately 2 weeks after the first
dose of vaccine although some evidence suggests that this may be sooner.
Immediate passive protection is offered by Hepatitis A immunoglobulin.
Vaccination is recommended for travellers to high risk areas and can be given to
infants from 1 year of age. It is worth noting that those with a history of jaundice or
who have lived for a long time in endemic areas may have become naturally immune
as a result of infection.
In common with other inactivated viral vaccines the manufacturers advise caution
during pregnancy or lactation unless the risk of infection is substantial. Passive
vaccination with pooled immunoglobulin (a blood product with its own potential risks)
is an alternative. This can be useful when active vaccination may be ineffective, e.g.
in the immunocompromised. There is now evidence that active vaccination gives
good protection against illness even if administered shortly before, or immediately
after exposure. There are no carriers of the virus. Virus is normally excreted in bile
7-14 days before the onset of jaundice, excretion then declines over the next 5-7
days. Virus is present in both urine and faeces of infected patients.
Human immunoglobulin (HNIG ) offers short term protection against hepatitis A for
up to 4 months and is sometimes used in the control of an outbreak where it should
be given to close household contacts within 14 days of the inset of symptoms.
Hepatitis A vaccination in a defined population has been used to prevent further
infections. However guidance should be sought from the Health Protection Unit.
4.5.3 Hepatitis E (HEV)
The clinical course of this infection is similar to that described for hepatitis A. There
is no evidence of a chronic form and the case fatality rate is generally the same as
hepatitis A.
Diagnosis depends on clinical and epidemiological features and exclusion of other
aetiologies of hepatitis, especially A, by serological means.
Primarily the faecal-oral route transmits hepatitis E. Outbreaks of HEV and sporadic
cases have occurred, principally in countries with inadequate environmental
sanitation.
Period of communicability is not known; it has been detected in stools 14 days after
onset of jaundice and approximately 4 weeks after oral ingestion of contaminated
food or water. Control of infection is the same as that described for hepatitis A,
although no vaccine is available.
4.5.4 Salmonella, Shigella and Campylobacter
These are
notifiable infections and some of the most common causes of
gastrointestinal disease.
A stool sample is usually required to provide a definitive diagnosis but notification
should be made on an index of suspicion to the environmental health department.
Salmonella is the second most commonly reported cause of infectious intestinal
disease in the UK and can result in large outbreaks particularly due to food borne
transmission. All cases are reviewed by the environmental health officers and follow
up of cases carried out. Person to person spread may occur through the faeco oral
route without food as an intermediary. This risk is highest during the diarrhoeal
phase of the illness and risks are greater among babies and toddlers and faecally
incontinent adults. Incubation ranges from 6 hours to 3 days or occasionally longer
and the period of infectivity varies considerably, but is usually a few days to a few
months. However approximately 1% of adults and 5% of children under 5 will
excrete the organism for at least a year.
Shigella are a group of bacteria that cause intestinal infection including bacillary
dysentery. Numbers of reports have decreased dramatically since the fifties and
sixties when 20-40,000 cases were reported annually. Shigellosis is primarily a
disease of children with the highest rates in the under fives, followed by the 5-14 age
group. Common settings for outbreaks of S.Sonnei are schools and nurseries.
Man is the only significant reservoir of infection and transmission is via the faeco oral
route either directly or by contaminated food or water. Food borne outbreaks are
relatively rare.
The incubation period is between 12 and 96 hours, but may be up to a week for
some strains. The infective dose is very low; and may follow ingestion of as few as
10 organisms. Cases may maintain low levels of infectivity for up to 2-4 weeks.
Campylobacter species causes diarrhoeal and systemic illness in humans and
animals and is the most commonly identified cause of infectious intestinal disease in
developed countries. Campylobacter is found in the gastrointestinal tract of birds and
mammals and animals develop a lifelong carrier state. Although food borne
outbreaks are rarely identified occasional large outbreaks due to contaminated water
or milk may occur.
Campylobacter infection may vary from asymptomatic (about 25%) to a severe
disease similar to ulcerative colitis or acute appendicitis. Most cases settle after 2-3
days of diarrhoea. Incubation is related to the dose ingested usually about 3 days,
but with a range of 1-10 days. Person to person may occur, but is likely to be
associated with poor hygiene. Duration of excretion may be up to 7 weeks falling
exponentially after the end of symptoms.
Campylobacters are commonly found in bulked raw milk samples, but properly
conducted pasteurisation destroys the organism.
If any of the above are suspected every effort should be made to segregate the
person if in a residential setting, and specimens collected and precautions taken
such as use of gloves and aprons and thorough hand washing.
VIRAL INFECTION
4.5.5 Small Round Structured Virus (SRSV)
This section covers gastroenteritis caused by calciviruses, particularly Norwalk like
agents. Although generally causing mild illness, spread particularly in institutions
may be rapid. Other causes of viral gastro enteritis include rotavirus, adeno virus
and astrovirus. All ages are affected and although cases are reported throughout
the year greater numbers are notified in the cooler months. Recorded outbreaks in
the UK occur mainly in hospitals or residential institutions such as nursing homes
although outbreaks have occasionally been reported in hotels, ships and schools.
This must be
notified to relevant infection control team/environmental health
departments and health protection unit.
SRSV infection is relatively mild, lasting 12-60 hours. Abdominal cramps and nausea
are usually early symptoms, followed by vomiting and/or diarrhoea. Forceful vomiting
is especially characteristic. Diarrhoea is usually mild with no blood mucus or white
cells. Other symptoms may include anorexia, lethargy, myalgia, headache and fever.
Illness may be debilitating in the elderly.
Transmission is person to person via the faecal-oral route either directly through
contaminated food or water, or indirectly through contamination of environmental
surfaces and other items. SRSV can remain viable for many days on curtains and
carpets which might explain spread in some outbreaks. Humans are the only known
reservoir of SRSV and the infectious period lasts until 48 hours after the resolution of
symptoms. Every effort should be made to segregate any individual suspected of
infection and specimens collected. Thorough handwashing and use of protective
clothing is important in reducing spread.
Electron microscopy of faecal specimens collected early on is the mainstay of
confirmation of the infection.
Specimen forms should clearly state a request for
virology ? SRSV.
If laboratory confirmation is lacking, clinical symptoms can be used to assess the
likelihood of an outbreak.
4.5.6 Rotavirus
Rotaviruses are the commonest cause of childhood diarrhoea. Peak incidence is at
6 months to 2 years of age and clinical infection is unusual above 5 years. Onset is
usually sudden with vomiting and diarrhoea but illness usually only lasts a few days.
Confirmation is by electron microscopy and serology may also be used. Spread is
person to person via the faeco oral route although there may also be spread from
respiratory secretions and sometimes contaminated water. Outbreaks may occur in
any setting where the virus may contaminate the environment. Incubation is usually
1-3 days. Every effort should be made to segregate a person with infection and
specimens should be collected and sent to laboratory promptly. Thorough
handwashing and the use of protective clothing will help in the reduction of spread to
other susceptible individuals.
REFERENCES – Section 4.5
Hawker J, Begg N, Blair I, Reintjes R and Weinberg J (2001), Communicable
Disease Control Handbook, Blackwell Science.
4.6 METHIILLIN-RESISTANT STAPHYLOCOCCUS AUREUS (MRSA)
Staphylococcus aureus is a type of bacterium carried in the nose and on the skin
usually without causing harm. However, in certain circumstances, particularly when
the patient is elderly and living in residential care or terminally ill in a hospice or at
home,
staphylococcus aureus can cause infections.
Staphylococcus aureus also
represents problems to certain acute hospital units, especially surgical, intensive care
and burns, where the patient is immuno compromised and the skin is not intact due
to invasive procedures such as wounds and intravenous infusion.
Some strains of
staphylococcus aureus have become resistant to methicillin (a once
commonly used antibiotic), as well as to other antibiotics. Methicillin resistant
staphylococcus aureus (MRSA) behaves in the same way as ordinary
staphylococcus aureus and does not cause more severe or different infections.
However, MRSA is more difficult to treat as there are fewer antibiotics with which to
treat it, and some of these antibiotics must be given by injection or infusion. They
may also have unpleasant side effects. MRSA rarely causes infection in healthy
people.
Outside acute hospital units people may carry MRSA without it causing harm to
themselves or others. They are said to be MRSA carriers or to be colonised with
MRSA. Although attempts are made to eradicate colonisation in acute hospital
patients, this is not always necessary for patients in low-risk clinical areas of the
hospital, or anywhere where the situation is similar to that found in community
residential or nursing homes.
Carriage of MRSA is not a contraindication to the transfer of a patient to a
nursing or residential home or their own home. There is also no indication for
routine screening before hospital discharge to the community. MRSA carriage
should not be a reason for discriminating against individuals. Should a patient need
to be admitted to hospital, then they should inform the hospital that the patient is, or
has been, positive for MRSA.
4.6.1 Control and Care in the Community
Isolation of MRSA carriers is, generally, not necessary in residential/nursing
homes.
A colonised person without open wounds may share a room if the other person
does not have open lesions, but a colonised person who has open wounds
should be in a single room, if one is available.
All cuts or breaks in the skin of staff or patients should be covered, with an
impermeable dressing.
The patient should be encouraged to practice normal hygiene with hand washing
after using the toilet and before eating.
If a resident of a nursing home, the patient may also join other residents in
communal areas, such as sitting or dining rooms, providing any sores or wounds
are covered with a dressing.
No special precautions are necessary with crockery or cutlery.
Clothes and bedding should be machine washed, preferably on a hot-wash
setting, or dry-cleaned if unsuitable for machine washing, or in accordance with
manufacturers instructions.
Equipment that has been in contact with the patient such as a commode should
be thoroughly cleaned with detergent and water.
Positive patients may be transported with other patients in the same vehicle
without special precautions (other than those mentioned above). No extra
cleaning of the vehicle is usually necessary.
All staff should maintain good infection control practice when carrying out nursing
procedures on all patients regardless of MRSA status.
4.6.2 Eradication of MRSA in colonised patients
Good hand washing practice by staff and patients is the single most important
infection control measure and is essential to prevent spread of MRSA as well as
other infections.
Older people who are generally healthy, but frail are at minimal risk of developing an
infection when colonised with MRSA. It is not always possible to eradicate MRSA,
and routine screening is not necessary unless there is a clinical reason (e.g. a wound
is getting worse). In this situation, swabs should be taken for general microbiological
investigation, not just MRSA screening, although the laboratory will need to be
informed that the resident is, or has been, positive.
In certain cases it may be necessary to attempt to eradicate colonisation. Frail,
elderly people recovering from surgery or serious illness may not be able to tolerate
MRSA sensitive antibiotic treatment, whilst topical antiseptics may exacerbate pre-
existing skin conditions or cause irritation. However, if the benefits clearly outweigh
any potential drawbacks, medical staff may prescribe an eradication programme. In
1998 the Working Party recommended in the ‘Revised Guidelines for the Control of
Methicillin-Resistant
Staphylococcus Aureus Infection in Hospitals’ the following
prescribed treatment of carriers, colonised sites and infections.
3.6.3 Nasal carriage
2% Mupirocin in a paraffin base (Bactroban Nasal) 3 times a day to each nostril for 5
days. Swab 2 days later. If the patient is still positive - repeat treatment once. If still
positive contact should be made with the consultant microbiologist.
3.6.4 Skin carriage
MRSA in any site – bathe daily for 5 days with Octenisan. Moisten skin, apply
solution thoroughly to all areas before rinsing in bath or shower. Wash hair in same
solution twice a week (day 2 and 4). Pay special attention to axilla, groin, perineum
and buttock area. If not eradicated, the course may be repeated. It is necessary to
change towels and flannels/cloths daily, as well as bed linen.
Daily damp dusting of the patient’s bedroom, careful hygiene and general domestic
cleaning should be thorough.
Systemic treatment should be considered only in special circumstances or if there is
significant local skin infection.
3.6.6 Follow-up
Three negative swabs from previously positive sites should be obtained before
accepting that MRSA has been cleared. However there may be individual
circumstances where patients are frequently positive. Indivial guidance can be
obtained through the Consultant Microbiologist.
Risk factors for acquisition of MRSA apart from antibiotic treatments include frequent
to healthcare settings and nursing / residential homes.
Please note: There may be some local variation between the acute trusts in
their management of MRSA colonisation/infection. Where appropriate please
follow the advice given for individual cases.
4.6.3 Care of the Patient in their Own Home
Carers who attend a patient with MRSA in their own home usually require no special
management apart from routine practice of hand decontamination and use of
protective clothing for procedures where contamination is possible. This should be
no different to care delivered to other patients. However, the minimal risks to other
patients could be reduced further by seeing patients with infections or MRSA
colonisation at the end of the shift although this may not always be practicable.
If a patient has a wound with MRSA healing is the priority not eradication. Regular
swabbing is rarely recommended as MRSA usually clears once healing has taken
place.
4.6.4 Wound Carriage
Dressings containing certain antiseptics i.e. silver may be applied to infected or
colonized wounds. These are unlikely to eradicate the organisms but should prevent
further growth.
REFERENCES – SECTION 4.6
Department of Health, (1998) ‘MRSA What Nursing and Residential Homes Need to
Know’ August, HMSO.
Department of Health, PHMEG (1996) Guidelines on the Control of Infection In
Residential and Nursing Homes.
Working Party Report, (1995) ‘Guidelines on the control of Methicillin-Resistant
Staphylococcus Aureus in the Community’ Journal of Hospital Infection , 31: 1-12.
Working Party Report, (1998) ‘Revised guidelines for the control of Methicillin-
Resistant Staphylococcus Aureus infection in hospitals’ Journal of Hospital Infection,
39: 253-290.
A simple guide to MRSA. DH pamphlet.
MRSA
What is MRSA?
How is MRSA spread?
MRSA stands for Methicillin Resistant On the hands of those caring for people
Staphylococcus Aureus. Staphylococcus who are carrying MRSA. It survives on skin,
aureus is a common bacterium, which is and as dust contains dead skin cells the
carried by 20- 40% of the population.
environment should be maintained in a
clean state.
Methicillin is an antibiotic in the same group
as penicillin. MRSA therefore means that the
What can I do to stop MRSA spreading to
staphylococcus aureus has become resistant
others?
to treatment with these types of antibiotics. If Careful hand washing after helping with any
someone has MRSA infection there are a personal hygiene, for example, helping with
limited number of antibiotics that can be used a wash or taking the person to the toilet.
to treat the infection.
Health care workers should wear gloves and
Is MRSA any more harmful than ordinary aprons when they are undertaking personal
Staphylococcus?
care or dealing with body fluids.
No. The MR part makes no difference to the
virulence of the infection.
Why then do people who are just
colonised with MRSA get isolated in
What is the difference between being hospital?
colonised and infected with MRSA?
This is done to stop MRSA spreading to
Colonisation means that the MRSA is present other patients in hospital who may have had
on skin, nose or sometimes on leg ulcers, but surgery or have other risk factors. It is not
it is not causing any harm to the person.
necessary to isolate people when they are
in the community.
However, sometimes Staphylococcus aureus
(and therefore MRSA) can cause an infection.
Can MRSA be treated?
This may be in any wound or the urine when Yes. This is referred to as ‘decolonisation’
the bacterium damages tissue. These types and you can discuss this option with your
of antibiotic- resistant infections are more doctor. Decolonisation is sometimes not as
common in vulnerable patients.
successful
when
people
have
skin
conditions like eczema and psoriasis, or if
Where does MRSA live on the body?
they have a catheter, a drip or a large
MRSA lives in the nose, armpits, groin, wound.
wounds and any tubes or drains which is why
these are swabbed when looking for MRSA.
Where can I get more information?
It can also survive for a short time on hands, More information is available from:
which is why good hand hygiene should be
Your GP or Practice Nurse.
maintained especially after skin contact with
Your District Nurse.
the person.
Manager of the
nursing/residential home.
How do you know whether the person is
The Public Health Protection Team
colonised or infected?
Nurse
or
Community
Infection
When a person is infected they will have
Control Nurse.
signs
and
symptoms
of
an
infection
diagnosed by the Doctor. If they are
colonised they are not ill and will not have any
signs or symptoms of an infection.
APPENDIX 1 – Section 4.6
ADVICE FOR PATIENTS, RELATIVES AND FRIENDS
4.7 SCABIES, HEADLICE AND WORMS
4.7.1 SCABIES
What should you know about scabies?
Scabies is a parasitic infestation caused by a whitish, translucent mite,
Sarcoptes
scabiei that can burrow tunnels in the epidermis.
Transmission of scabies occurs by prolonged skin to skin contact and is increased in
those individuals who harbour a greater number of parasites, e.g. immunodeficient
patients.
The full life cycle of Sarcoptes scabiei from egg to adult takes 10 to 15 days. It has
four stages:
egg, six legged larval stage, eight legged nymphal stage and
adult.
The fertilised adult female lives and lays eggs in the epidermis in small linear burrows
that she forms by tunnelling. After the eggs hatch, the six legged larvae excavates a
new burrow in a skin fold or hair follicle. Adult males move more actively between
burrows seeking to mate.
When should you suspect scabies?
There are three main clinical manifestations of scabies:
classic (the form that is
usually seen),
atypical and
crusted scabies.
Classic scabies
Individuals present with an itchy symmetrical allergic rash, especially worse at
night. Other allergic lesions such as papules or vesicles may accompany it.
Normally, the incubation period in adults is 3 weeks, but in re-exposed individuals
symptoms can present after 1 to 4 days.
The areas that are particularly affected by lesions include the:
-
Interdigital web spaces of the hands.
-
Flexor surfaces of the wrists and elbows.
-
Axillae.
-
Male genitalia.
-
Women’s breasts.
Atypical
In the atypical form, individuals usually have very minor symptoms with no itching
or a diffuse papular lesion.
Crusted scabies
The crusted form is characterised by hyperkeratotic skin lesions (
Norwegian
scabies).
Itchy bullous lesions, lichenification and or erthrodermic reactions may also be
present.
Lesions are particularly found on the:
-
Palms and soles, nail beds of hands and feet and wrists.
-
Buttocks and penis.
What should you do?
DIAGNOSE The definitive diagnosis of scabies is made by microscopic
identification of the mites, eggs or mite faeces. Skin scrapings and
detection of the mite at the end of its burrow are both recommended
methods.
TREAT
The infested individual and their close physical contacts should be
treated at the same time. This includes household family contacts.
The lotion or cream is applied to the whole body with particular
attention to the groin, fingernails, toenails and behind the ears. The
product should be washed off as instructed by the manufacturer leaflet
and clothes and bed linen changed.
The classic form of scabies usually responds to one or two
applications of permethrin or malathion.
Benzyl benzoate is not first choice treatment because it is not ovicidal,
multiple treatments are required, and it is an irritant.
In the crusted form of scabies at least three treatments may be
necessary, 48 hours apart.
ADVISE
Patients should be advised that itching could persist for up to 1-2
weeks after the end of correctly applied scabicide therapy.
All staff MUST inform Occupational/Staff Health if they suspect that they are infected.
4.7.2 Head Lice
What should you know about head lice? The adult louse is 3mm long and spends its whole life cycle on human hair.
They can live on the scalp for up to 4 weeks but cannot live free of the head.
They do not jump or fly, and can only be spread by prolonged contact of more
than one minute.
Infection with head lice is most common in children aged 6-11 years.
It is usually asymptomatic (only 15-35% of people experience itching) although re-
infections are likely to produce itching.
When should you suspect head lice?
A diagnosis of head lice can only be made if a
living, moving louse is found.
It cannot be based on the presence of nits (the empty shell) alone, as nits can remain
stuck to hair long after an infection has been eradicated.
Head lice and live eggs are difficult to see, and in most infections at any one time
there are approximately 10-12 lice on the scalp.
Usually, it is easier to find head lice on damp hair using a specially designed plastic
detection comb. Ideally, combing should be done over a pale piece of paper.
What should you do?
DIAGNOSE
t is essential to make the correct diagnosis, verified by direct
observation. Ask for verification from the parent by instructing
them to bring the louse stuck to a piece of paper with sticky
tape.
TREAT
Treatment is only required for those who are infected, there is
no need to automatically treat all household members.
Insecticides
This is the only treatment for which there is clear evidence of
effectiveness. There are three types of head lice insecticides
available: malathion, pyrethoids and carbaryl.
Recommended products
First choice:
-
Malathion: Suleo M, Derbac M Lotions
-
Pyrethoids: Lyclear creme rinse, Full Marks liquid, lotion or
mousse
For treatment failures try Carbaryl: Carylderm liquid or lotion
(prescription only).
Each application will require a minimum of 50 mls (a small
bottle), people with thick hair may need up to three bottles.
Lotions and liquids need a contact time of at least 12 hours or
overnight. Two applications are recommended, 7 days apart.
A maximum of one treatment per week for three consecutive
weeks should not be exceeded.
Bug Busting
An alternative treatment method is Bug Busting. This involves
washing hair with shampoo, applying conditioner thoroughly,
and combing hair with a plastic detection comb. The hair is
combed until no more lice are found.
Each treatment session takes about 30 minutes, and has to be
repeated every 3 to 4 days for a minimum of 2 weeks. At least
three combing sessions are needed after the last adult louse is
found. Bug Buster kits are available from pharmacies.
4.7.3 WORMS: A QUICK GUIDE
Wuchereria bancrofti (bancroftian filariasis)
Filariasis
Brugia malayi (Malayan filariasis)
Loa loa (loiasis)
Onchocerca
volvulus
(onchocerciasis-river
blindness)
Drancunculiasis
Drancunculus medinensis (guinea worm)
Toxocariasis
Toxocara canis or T.cati
(visceral/ocular larva migrans)
Trichinosis
Trichinella spiralis
Nematode
(trichinellosis)
(roundworms)
Enterobiasis
Enterobius vermicularis (threadworm)
Ancylostoma duodenale (hookworm anaemia)
Hookworm
Ancylostoma brazilienese or A. caninum
(cutaneous larva migrans-creeping eruption)
Necator americanus (hookworm anaemia)
Trichuriasis
Trichuris trichiura
Ascariasis
Ascaris lumbricoides (roundworm)
Strongyloidiasis
Strongyloides stercoralis
Schistosoma mansoni
Schistosomiasis
Schistosoma japonicum
(bilharziasis)
Schistosoma haematobium
Trematodes
Fascioliasis
Fasciola hepaitca (liver fluke)
(flukes)
Clonorchiasis
Clonorchis sinensis (oriental liver fluke)
Fasciolopsiasis
Fasciolopsis buski (intestinal fluke)
Taeniasis
Taenia saginata (beef tapeworm)
Taeniasis
Taenia solium (pork tapeworm) (cysticercosis)
Cestodes
(tapeworms)
Diphyllobothriasis
Dipphyllobothrium latum (fish tapeworm)
Hydatid disease:
Echinococcus granulosus
cystic
Hydatid disease:
Echinococcus multilocularis
Alveolar
Reference:Medicine vol 25:2 1997
4.7.4 FILARIASIS
What causes it?
The nematodes Wuchereria bancrofti, Brugia malayi, Brugia timori.
Where is it found?
It is endemic in most of the warm humid regions of the world: Latin America, Africa, Asia
and the Pacific Islands.
How do you get it?
It is transmitted by the bite of a mosquito that harbours infective larvae.
What are the symptoms?
They may be asymptomatic or present with recurrent fever, lymphadenitis, elephantiasis
of the limbs and pulmonary eosinophilia syndrome. They are long threadlike worms that
dwell in the lymphatic system.
How do you make the diagnosis?
It is diagnosed by the appearance of characteristic sheathed microfilariae on microscopic
examination of peripheral blood. It usually takes three to six months before microfilariae
appear in the blood for B.malayi and 6 to 12 months in W.bancrofti.
Is it communicable?
It is not transmitted from person to person.
4.7.5 SCHISTOMIASIS OR BILHARZIA
What causes it?
The trematodes Schistosoma mansoni, S. haematobium and S.japonicum
Where is it found?
Africa, Arabian Peninsula, Brazil, Suriname, Venezuela, Middle East, China and
Philippines.
How do you get it?
By an individual working, swimming or wading in water contaminated with free swimming
larval forms of Schistosoma (cercariae). The cercariae develop in snails but mature in
the human lung and liver by entering the skin and then bloodstream. The adult forms
migrate and remain in the veins of the abdominal cavity. Their eggs are deposited in the
venules, but may escape or lodge in other organs including the liver and the lungs.
What are the symptoms?
The symptoms depend on the number and location of the eggs in the human host. For
S.Mansoni and
S.japonicum the symptoms include diarrhoea and abdominal pain.
S.Haematobium usually gives urinary symptoms such as dysuria, frequency and
heamaturia at the end of micturition.
How do you make the diagnosis?
Demonstrating live eggs in urine, stools or in a biopsy specimen.
Is it communicable?
It is not communicable form person to person.
4.7.6 ASCARIASIS OR ROUNDWORM INFECTION
What causes it?
The nematode
Ascaris lumbricoides
Where is it found?
It is a common infection worldwide with a high occurrence in tropical countries.
How do you get it?
By the ingestion of infective eggs of
A. lumbricoides from soil contaminated with human
faeces or from uncooked produce contaminated with soil containing infective eggs.
Eggs when they reach the soil become embryonated (infective) after 2 to 3 weeks
(summer temperatures) and may remain infective for several months or years.
The ingested infective eggs hatch in the gut lumen, and then the larvae penetrate the gut
wall to reach the lungs via the blood stream. The larvae grow and develop in the lungs
passing into the alveoli, and then ascend the trachea and are swallowed. They reach
the small intestine where they mature 14 to 20 days after the eggs have been ingested.
The usual life span of an adult worm is 12 months.
What are the symptoms?
Usually, there are few or no symptoms. Live worms can be passed in the stools or
occasionally from the mouth or nose. Some may develop lung symptoms caused by
larval migration and characterised by wheezing, coughing, fever and blood eosinophilia.
How do you make the diagnosis?
Microscopic examination of faeces for eggs.
Is it communicable?
It is not directly communicable from person to person.
4.7.7 HOOKWORM INFECTION
What causes it?
The nematode
Nector americanus,
Ancylostoma duodenale,
A ceylanicum and
A.
caninum.
Where is it found?
It is endemic in tropical and subtropical countries.
N.americanus is a common species
found in South East Asia, sub Saharan Africa and tropical America.
How do you get it?
Human infection occurs when the infective larvae penetrate the skin, usually the foot.
Under favourable conditions of moisture, temperature and soil type, larvae develop from
eggs deposited on the ground in faeces. They become infective in 7 to 10 days.
The larvae of
A. caniinum die within the skin having produced cutaneous larva migrans.
The other types of larvae enter the skin to the lung alveoli via the lymphatic system and
bloodstream. They migrate up the trachea, are swallowed and reach the small intestine
where they attach to the wall. They mature after 6 to 7 weeks and then produce
thousands of eggs a day.
What are the symptoms?
Larval penetration of the skin can lead to intense local itching whilst larval migration to
the lungs can lead to respiratory symptoms such as a cough and tracheitis. Larval
attachment to the gut wall is often asymptomatic, but in heavy infestations anaemia may
result.
How do you make the diagnosis?
By microscopic examination of stools for eggs.
Is it communicable?
It is not transmitted from person to person.
However, infected people may contaminate the soil for several years.
4.7.8 STRONGYLOIDIASIS
What causes it?
The nematode
S.stercoralis Where is it found?
It is widely distributed in the tropics but it can occur in temperate climates.
How do you get it?
Free living adults produce eggs,
rhabditiform larvae (noninfective) and
filariform larvae
(infective).
The
filariform larvae can directly penetrate the skin to enter the circulation to the lungs
becoming adults in the intestinal tissues.
In some individuals, rhabditiform larvae may develop to the infective stage before leaving
the body and penetrate the intestinal mucosa and perianal skin.
What are the symptoms?
The most common symptoms are a rash and pruritus at the larval entry site. Larval
migration may cause symptoms such as pneumonitis and intestinal symptoms can occur
on maturation. The intestinal symptoms comprise epigastric pain, diarrhoea, flatulence
and vomiting.
How do you make the diagnosis?
By identification of the larvae in stools.
Is it communicable?
As long as living worms remain in the intestine.
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4.8 MANAGEMENT OF CLOSTRIDIUM DIFFICILE POLICY
4.8.1 Introduction
Clostrium difficile (C.Difficile; C.Diff) is a spore-bearing anaerobic bacterium that is a
major cause of healthcare-associated diarrhoea. It is often a compilation of broad-
spectrum antibiotic therapy and is particularly associated with the use of Clindamycin,
Ampicillin or Cephalosporins.
Clinical onset of Clostrium difficile associated with diarrhoea (CDAD) often occurs when
patients are on antibiotics or within four weeks of finished a course of antibiotics.
Antibiotic prescribing should be in accordance with the Trusts prescribing guidelines,
inappropriate administration of broad-spectrum antibiotics should be avoided, and
prescribing should be regularly monitored, with feedback to prescribers as appropriate.
Diarrhoea may be self-limiting in some cases. Stools may be watery and/or bloody with
a distinctive foul smell and green or yellowish-brown appearance. Patients may have
related fluid and electrolyte disturbance and a low-grade temperature. In some cases
pseudo-membranous colitis may result, which can be fatal.
The risk of colonisation with Clostrium difficile increases with the proximity of an infected
person and the length of inpatient stay. Patient groups at risk are surgical, renal, older
people and oncology. The incidence increases significantly in patients over the age of
fifty years.
Transmission of infection can occur owing to the large numbers of organisms shed by an
affected patient and from spores that can survive for prolonged periods in a dry
environment. Prevalence of infection tends to be higher in the winter.
All cases of diarrhoea (3 or more loose stools in 24 hours), and particularly more than
one case of diarrhoea on a unit within 48 hours, must be reported to the Infection
Prevention & Control Team.
For more than one case of diarrhoea out of office hours, staff should contact the senior
manager on call who should contact the on call microbiologist.
The Consultant in Communicable Disease Control (CCDC) at the Health Protection Unit
should be called on to investigate and manage outbreaks of diarrhoea of any cause in
independent care homes.
Any diarrhoea should be suspected of having an infective cause until proven otherwise.
Standard infection control precautions must be used for contact with faecal matter, in
particularly gloves and aprons must be worn and effective hand hygiene practiced.
4.8.2 Management of patients suspected of having Clostrium difficile associated
diarrhoea (CDAD)
Patients must not be admitted of transferred into any inpatient unit if they have had any
diarrhoea within the previous 48 hours.
The transferring hospital or unit must send a fax (signed by the nurse-in-charge) to the
PCT unit to confirm that the patient has not had diarrhoea in the preceding 48 hours.
This should arrive on the PCT unit before the patient leaves the transferring unit.
If a patient is admitted or transferred in with diarrhoea e.g. because of inaccurate
information being supplied by the transferring hospital, an incident form must be
completed and the Modern Matron and Infection Prevention& Control Team must be
notified. Staff must make every effort to obtain accurate patient information from the
transferring hospital to avoid this situation occurring.
Admission of a patient with diarrhoea on to an open ward, or to a double room in a
nursing home, could put other patients at risk of infection. Therefore the points above
must be strictly enforced in these areas.
Patients must not be transferred from ward to ward or from floor to floor within a unit if
they have diarrhoea, unless this is necessary to move them to single room
accommodation. Movement to other departments must be restricted and only on the
advice of the Infection Prevention Control Team.
If a patient is suspected of having CDAD, follow these guidelines:-
• Maintain standard and contact infection control precautions and use
soap and water for effective hand hygiene as, in the presence of
bacterial spores, alcohol hand gel is less effective. Wash hands after
any contact with the patient or their immediate environment.
• Patients with diarrhoea should be isolated in a single, where possible,
en suite room. Any excess equipment should be removed from the
room before the patient is isolated.
• Where isolation is not possible, due to a lack of single rooms, patients
may need to be transferred back to single room accommodation at the
hospital or unit from which they came. Please discuss this with the
Infection Prevention & Control Team.
• If the patient is incontinent, wear gloves and apron from contact with
faecal matter and dispose of these and other contaminated material
as clinical waste.
• Treat contaminated laundry as infectious and place in a red alginate
bag inside a clear outer laundry bag.
• If the patient is mobile, a toilet should be dedicated for his or her
personal use, if this is feasible. Alternatively a commode should be
designated for the use of a patient/patients with CDAD.
• On units with affected patients, there may be significant contamination
with Clostridium difficile on toilets, bedpans, floors, the bed area,
lockers, patient call buttons and the hands of personnel. Spores can
survive for prolonged periods in the environment. Therefore thorough
daily cleaning of equipment and the environment and disinfection with
chlorine-releasing solution (e.g. Presept 1,000 ppm) is essential.
• Clean and disinfect toilet/commode seat, commode arm rests and
toilet flush lever after each use by a patient with CDAD.
• Clean and disinfect frequently touched surfaces such as taps and door
handles at regular intervals (i.e. 6 times per day) during an outbreak of
CDAD.
• Separate cleaning equipment must be clearly marked and used for
isolation rooms and toilets used by patients with CDAD. Disposable
cloths must be disposed of after each use.
Specimens must be sent to the laboratory as soon as possible. A diarrhoeal sample
occupies the shape of its container. Non-diarrhoeal stools should not be sent for
Clostridium difficile screening. For any patient with potentially infectious diarrhoea, send
a specimen of stool (five to ten millilitres) for ‘bacteriology, including Clostridium difficile
toxin testing,’ to the laboratory immediately following collection.
Collect a further stool specimen from the same episode of diarrhoea for virology
9electron microscopy) to eliminate other infective causes, such as norovirus and
rotavirus.
In consultation with medical staff, check the prescription chart and stop laxatives and iron
supplements if currently prescribed. Consider the use of Brewer’s Yeast, which has
been found to be effective in alleviating CDAD. Dietary changes may help to relieve
symptoms.
Request that medical staff review antimicrobial medication (particularly if the patient is
receiving broad-spectrum antibiotics) and discontinue antibiotics if clinically indicated.
Discuss alternative treatment with Microbiology or the Pharmacist if necessary.
Anti-diarrhoeal agents should be avoided if Clostridium difficile is suspected, as these
may aggravate colitis symptoms, which could lead to toxic megacolon.
Isolation of the patient may be discontinued when the patient has not had diarrhoea for
48 hours. Transmission of Clostridium difficile to others does not occur in the absence of
diarrhoea and there is no need for further stool samples to be sent for toxin testing.
However, it should be recognised that the stools may remain positive for the toxin some
time after resolution of symptoms.
After the patient comes out of isolation, the room should be terminally cleaned, i.e. all
surfaces cleaned with hot water and detergent, following by disinfection with Presept
1,000 ppm and all curtains laundered.
Microbiology and Pharmacy should be consulted for advance on further antibiotic
treatment.
REFERENCES – Section 4.8 Department of Health
High impact intervention no. 6: reducing the risk of infection from and the presence of
Clostridium difficile.
Saving lives – a delivery programme to reduce healthcare Associated Infection, May
2006
Department of Health
Infection caused by Clostridium difficile.
Professional letter: PLCMO/PLCNO 2005
Department of Health
Surveillance of Clostridium difficile associated disease.
The Stationery Office, London 2005
Hawker J; Begg, N; Blair I; Reintjes R; Weinberg;
Communicable disease control handbook
Blackwell Science 2001
Healthcare Commission & Health Protection Agency
Management, prevention and surveillance of Clostridium difficile – interim findings from a
national survey of NHS acute trusts in England.
December 2005
Healthcare Commission
Investigation into outbreaks of Clostridium difficile at Stoke Mandeville Hospital
Buckinghamshire Hospitals NHS Trust July 2006
National Clostridium Difficile Standards Group
Report to the Department of health
The Stationery Office, London February 2003
Appendix 1 – Section 4.8
A simple guide to Clostridium difficile for staff
This guide explains that Clostridium difficile is, how it has developed and ways in which it
can cause infection.
Clostridium difficile is the major cause of antibiotic-associated diarrhoea and colitis, a
healthcare associated intestinal infection that most affects older people with other
underlying diseases.
Background Clostridium difficile is a bacterium of the family of Clostridium (the family also includes
the bacteria that cause tetanus, botulism and gas gangrene). It is an anaerobic
bacterium (i.e. it does not grow in the presence of oxygen) and it produces spores that
can survive for a long time in the environment. Its usual habitat is the large intestine,
where there is very little oxygen. It can be found in low numbers in small proportion (less
than 5) of the health adult population. It is kept in check by the normal ‘good’ bacteria of
the intestine. It is common in the intestine of babies and in fact but does not cause
disease because its toxins (*the points sit produces), do not damage their immature
intestinal cells.
Although Clostridium difficile was first described in the 1930’s, it was not identified as the
cause of diarrhoea and colitis following antibiotic therapy until the late 1970’s.
What does it cause?
Clostridium difficile can cause diarrhoea ranging from a mild disturbance to a very severe
illness with ulceration and bleeding from the colon (colitis) and, at worst, perforation of
the intestine leading to peritonitis. It can be fatal.
Generally it only able to do this when the normal healthy intestinal bacteria have been
killed off by antibiotics. When not held back by the normal bacterial, it multiplies in the
intestine and produces two toxins (A & B) that damage the cells lining the intestine. The
result is diarrhoea.
Who gets Clostridium difficile infection?
Patients who have been treated with broad spectrum antibiotics (those that affect a wide
range of bacteria, including intestinal bacteria) are at greatest risk of Clostridium difficile
disease. Most of those affected are older people with serous underlying illnesses. Most
infections occur in hospitals (including community hospitals) and nursing homes, but
infections can also occur in primary care settings.
How does it spread? Although some people can be healthy carriers of Clostridium difficile, in most cases the
disease develops after cross infection from another patient, either through direct patient
to patient contact, via healthcare staff, or via a contaminated environment. A patient who
has Clostridium difficile diarrhoea excretes large numbers of the spores in their liquid
faeces. These can contaminate the general environment around the patient’s bed
(including bed tables, lockers, call buttons, equipment), toilet areas, sluices, commodes
and bed pan washers. Spores can survive for a long time and can be a source of hand-
to-mouth infection for others. If these others have also been given antibiotics, they are at
risk of Clostridium difficile disease.
How is it diagnosed?
A sample of diarrhoeal faeces is tested for the presence of the Clostridium difficile toxins
(A and B). This is the main diagnostic test and gives a result within a few hours.
In outbreaks, or for surveillance of the different types circulating the population,
Clostridium difficile can be cultured from faeces (this involves the local laboratory
sending specimens on to the regional Health Protection Agency laboratory) the isolates
can then be sent on to the anaerobe reference Laboratory (National Public Health
Service, Wales; Microbiology, Cardiff) for ribo typing and testing for susceptibility to
antibiotics.
How common is it? When Clostridium difficile was first recognised as the cause of antibiotic-associated
diarrhoea and colitis in the late 1970’s, laboratory diagnosis was difficult and the number
of cases was not monitored. Since 1990, laboratories have reported the number of
cases diagnosed to the Health Protection Agency in a voluntary system. The number of
reports increased from less than 1,000 in the early 1990’s to 22,000 in 2002, 28,000 in
2003 and 44,488 in 2004. Some of this increase was due to improved diagnostic tests
and improved reporting by laboratories, but there has clearly been a very significant
increase in the number of cases.
Since January 2004 Clostridium difficile has been part of the mandatory surveillance
programme for healthcare associated infections in acute Trusts.
What is Type 007 and why is it of concern? The typing system analyses part of the Clostridium difficile DNA (chromosome) in a test
called ribotyping. Over 100 types have been identified. Type 007 was rare in the UK,
the first isolate was identified in 1999 and the second in 2002. Individual isolates were
identified in 2003-5. When outbreaks at Stoke Mandeville and the Royal Devon and
Exeter Hospitals were investigated in 2004-5, Type 027 was found to predominate in
their cases. The same type has caused a large outbreak of severe disease in hospitals
in Canada (Quebec) and north eastern USA since 2000. Type 027 produces greater
quantities of the toxins than most other types of Clostridium difficile because a mutation
has knocked out the gene that normally restricts toxin production. It causes a greater
proportion of severe disease and appears to have a high mortality. It also seems to be
very capable of spreading between patients.
Prevention and control Important components in the prevention and control of Clostridium difficile disease are:
• Antibiotic prescribing policies to reduce the use of broad spectrum antibiotics
• Isolation of patients with Clostridium difficile diarrhoea and enhanced infection
control practice
• Hand washing (not replying solely on alcohol gels as these do not kill the spores)
• Wearing gloves and aprons, especially when dealing with bed pans and
commodes
• Enhanced environmental cleaning and use of a chlorine-releasing disinfectant
where there are cases of Clostridium difficile disease, to reduce environmental
contamination with the spores.
Appendix 2 – Section 4.8
Information for patients and carers on Clostridium difficile
What is Clostridium difficile?
C.diff stands for Clostridium difficile, which is bacterium (germ). Clostridium difficile lives
in the bowel of some people without causing any illness.
Why does Clostridium difficile make people ill?
Clostridium difficile makes people ill when the germs increase in the bowel and start to
produce a toxin (poison) which causes diarrhoea.
Antibiotics can contribute to Clostridium difficile illness as they kill the normal ‘good’
bacteria that live in the bowel. Clostridium difficile is resistant to these antibiotics so it is
able to increase in number and then produce the toxin, resulting in the infection.
What is the treatment? How we treat Clostridium difficile will vary from one person to another because every
patient is an individual case. There are specific antibiotics that can be given to reduce
the number of Clostridium difficile germs in the bowel. Whenever possible you will stop
taking the antibiotics that were originally prescribed. This will give your bowel a chance
to recover and the normal protective bacteria will start to grow again.
Will I be isolated? Clostridium difficile can be passed from one person to another. You may be given a
single room if one id available. Alternatively you may need to be placed at one end of a
ward or in the same area as other patients with the infection, to make it easier to protect
those that not affected.
You should wash your hands very thoroughly with soap and water after using the
lavatory and before any meals. If you have any concerns about standards of cleanliness
on the ward or unit, please speak to the nurse in charge.
Are my visitors at risk? No, not if they are in good health. It is also safe for pregnant women to visit you. Your
visitors do not normally need to wear gloves or an apron, but they should thoroughly
wash and dry their hands with soap and water before leaving your room or bed area.
Further information Thank you for reading this leaflet. We hope you have found it useful. If you need any
further information, please ask the nurse or doctor who is attending to your care. If
necessary, they can arrange for you to speak to one of the Infection Prevention &
Control nurses.
SECTION 5 : OUTBREAKS
5.1 INTRODUCTION AND PURPOSE
This is a clinical policy for use in the organisation’s inpatient services within
Cambridgeshire Community Services. This document provides guidance on outbreak of
communicable diseases which would not engage the Major Outbreak Policy.
The purpose of this document is to provide clear infection control guidelines and a
management process for the closure of an inpatient setting following the identification of
an outbreak of transmissible infection. It supplements the guidance provided in the
Organisation’s Outbreak Plan/Policy.
5.2 DEFINITIONS
Outbreaks of infection within a hospital or healthcare setting vary greatly in extent and
severity; ranging from a few cases restricted to a single ward or area to a hospital wide
outbreak involving many services, patients’ staff and visitors. The number of cases
required for a situation to be regarded as an outbreak varies according to the infectious
agent, severity of symptoms and number of cases in a given time, period and location.
National Health Protection definitions are followed by the Infection Prevention and
Control Team (IPCT). The decision to classify a situation as an outbreak will be made by
the IPCT in consultation with the Director of Infection Prevention and Control (DIPC) and
the Consultant in Communicable Disease Control ( CCDC Health Protection Agency).
The IPCT will have the discretion as to whether or not to instigate an outbreak plan.
Individual ward closures can be initiated without the activation of an outbreak meeting. If
the safe operation of the hospital is compromised then an outbreak meeting will be called
by the DIPC with expert advice from the consultant in Communicable Disease Control.
An outbreak is normally characterised by a cluster of similar infections occurring in one
area of the Trust within a concentrated period of time. Total or partial closure may be
necessary to prevent transmission if significant risks to patients and staff are identified
following a risk assessment.
5.2.1 Definition of Ward/Department Closure
A closed ward/department is unable to accept new admissions or inter
ward transfers; neither can it discharge patients to other health or social
care premises.
5.2.2 Major Outbreak
Full guidance on the management of a major incident can be found in the
organisation’s Major Outbreak Policy.
5.3 CLOSURE OF A WARD/DEPARTMENT
Where two or more patients are complaining of diarrhoea and vomiting, the IPCT should
be notified immediately during normal working hours. Out of hours the on call consultant
microbiologist should be notified, ensuring that the IPCT have been contacted on the
next working day.
The IPCT will assess the situation. Following a risk assessment the final decision to
close a ward or department will be made by the IPCT.
5.3.1 If deemed necessary, the DIPC will convene an Outbreak Control Team meeting:
a)
Membership of Outbreak Control Team:
•
Infection Control Doctor (Consultant Microbiologist)
•
DIPC
•
Lead Nurse of Infection Prevention & Control
•
Consultant in Public Health (Health Protection)
•
Modern Matron
•
Medical Director
•
Communication Lead
b)
The following may also be present:
•
Occupational health Advisor
•
Catering Manager (if outbreak is food poisoning)
•
Other Trust Managers, depending on nature of outbreak
•
Director of Pharmacist Lead
c)
The remit of the Outbreak Control team will be to:
•
Discuss the situation relating to the outbreak and plan the appropriate
action
•
Ensure that the outbreak is reported to relevant public health bodies
•
Ensure that infection control measures are in place and are working
•
Monitor that adequate additional resources are available i.e.
pharmaceutical supplies, cleaning, portering and laundry supplies
•
Monitor progress and arrangement of containment
•
Update the organisation’s board on developments
•
Provide infection control advice to health professionals and others
•
Provide briefing for staff and patients/visitors
•
Provide relevant information to the Communication Lead in the event of
press enquiries for the outbreak investigation
•
Review the outbreak when it is over and provide a final report with
recommendation to the CE
5.3.2 For the duration of any period of closure the CE will be regularly informed and
updated by the DIPC.
5.3.3 Guidance on caring for patients that require any additional or specific advice will
be provided by the IPCT.
5.3.4 Staff transfers both into and out of departments should cease unless agreed by
the MIPC.
5.4 REOPENING THE WARD
5.4.1 Ongoing review of the need for closure will be undertaken by the IPCT and
reported to the interested parties and Outbreak Control Meetings (where
appropriate). The IPCT will recommend the re-opening of a ward as soon as it is
appropriate.
5.4.2 Once re-opening is sanctioned arrangements for terminal cleaning of the area will
be made by the ward/unit manager and undertaken in advance of the re-opening.
SECTION 6 - QUALITY ISSUES AND AUDIT TOOLS
6.1 STANDARD SETTING, AUDIT AND CLINICAL GOVERNANCE
The effective control of preventable infections has always been seen as an indicator of
the quality of care a patient may receive. Elements incorporated into a quality assurance
framework continue to sit within an infection control strategic plan. Activities such as
standard setting and audit programmes have become essential components of an
infection control programme. Clinical governance is now emerged as an umbrella term
of all these quality assurance programmes. Its broad aim is to reassure people that
quality is the essence of healthcare at all levels of the organisation.
Accountability and responsibility for risk assessment and quality of care will be an issue
for all health professionals not just those involved in clinical activity. Managers, including
Chief Executives of NHS Trusts, have a clear responsibility for their risk assessments
and the quality of the service they provide.
All practitioners will be expected to follow practices that are clinically safe, effective and
evidenced based. Particular commitment will be given to following the guidelines and
recommended practices introduced by the National Institute for Health and Clinical
Excellence (NICE).
The commissioning PCT will monitor performance of NHS Trusts. This statutory body
will offer support and advice to any NHS Trust that may be experiencing difficulties.
6.1.1 Clinical Governance
Clinical governance established the importance of canvassing the opinion of all service
users particularly patients/clients. Users’ opinions will be sought and valued.
Encouragement of service users becoming involved with planning the future NHS will
become a key element in clinical governance.
Embodied into clinical governance is the commitment to life long learning for all
professionals, and a recognition of individual responsibility to identify learning needs and
maintain professional development.
Points to be considered when reviewing practice:
What systems are there in place?
What risk assessments are required?
Are the systems effective?
Is there a need to review activity?
There are elements of clinical governance that are familiar such as:
Standard setting.
Clinical audit.
Evidence based practice.
Risk management.
Life long learning.
Team building.
Peer review.
Clinical leadership.
There are also more unfamiliar elements of clinical governance such as:
Users involvement.
Clinical supervision.
Management of poor practice.
Reflective practice.
6.1.2 Infection Control Programmes
Infection control in all health care settings is gaining a higher profile. In practice, large
numbers of patients are seen and the potential for cross infection is substantial if good
practice is not maintained. It is essential to maintain public confidence by the production,
implementation and audit of robust policies and the documentation of activities such as
sterilisation processes.
All action plans should commence with the setting of standards for infection control. An
audit tool can be used to monitor infection control practices and provide data on
compliance with policies within the primary setting. This data has other uses, including
the planning of educational needs or evaluating the overall effectiveness of infection
control programmes.
Following an audit it is important that all relevant staff are given the opportunity to
discuss the findings. Urgent problems identified in the audit would have to be addressed
at that time.
A report should be written that highlights areas of good practice as well as those of
concern, along with recommendations and time scales for the recommendations to be
put into practice.
Re-audit of the area will ensure that recommendations have been accepted.
REFERENCES – Section 6.1
Griffiths-Jones A (1999) Clinical Governance – Infection Control British Journal of
Infection Control p20 May 1999
Infection Control Nurses Association (1998) ‘Community Infection Control Audit Pack’.
April 1998, reprinted June 1999 and February 2000. Edgbaston Birmingham
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