Lateral flow test validation for detection of asymptomatic SARS-CoV-2

Public Health England did not have the information requested.

Dear Public Health England,
I would like to request the report or publication that shows lateral flow tests have been validated for the detection of *asymptomatic* SARS-CoV-2 or COVID-19.

I have been able to find one preliminary report that suggests LFDs were verified following tests on 43 people who were confirmed to have asymptomatic SARS-CoV-2 (https://www.ox.ac.uk/sites/files/oxford/...). This does not qualify as a validation of asymptomatic detection as using n=43 subjects results in an underpowered study.

Please provide a report or publication (preferably from an independent body and peer reviewed) of an appropriately powered study that validates LFDs for the detection of asymptomatic SARS-CoV-2.

Yours faithfully,

Steven Hammer

FOI, Public Health England

OFFICIAL
Dear Steven Hammer,

We acknowledge receipt of your email and request for information, which will be treated as a request for information under statutory access legislation.

Please note that requests under the Freedom of Information Act and the Environmental Information Regulations (EIRs) will receive a response within 20 working days from the day following the date of receipt of your request.

If the request is for your personal data, your request has been handled as a data subject access request (SAR) under Article 15 of the General Data Protection Regulation (GDPR), then we will respond within one month of the receipt of the request.

Public Health England (PHE) is responsible for providing guidance and advice to government and front-line services for all aspects of public health. It is a designated Category 1 responder organisation under the Civil Contingency Act and this specifically includes the COVID-19 response, providing clinical expertise and wider public health advice and guidance across national and local government, the NHS and third sector. As such, you may experience delays when making statutory information access requests during the pandemic.

We will aim to address all requests promptly and within the required response timeframes. However when we are unable to meet the response timeframe we will keep requesters updated on a revised expected timescale for a response to their request. The Information Commissioner recognises this position in its recent guidance, see link: https://ico.org.uk/global/data-protectio...

Public Accountability Unit
Public Health England
[Public Health England request email]
Tel: 020 8327 6920
www.gov.uk/phe Follow us on Twitter @PHE uk

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FOI, Public Health England

1 Attachment

OFFICIAL
Dear Steven Hammer,

Please find attached Public Health England's response to your request.

FOI Team
Public Accountability Unit
Public Health England
[Public Health England request email]
Tel: 020 8327 6920
www.gov.uk/phe Follow us on Twitter @PHE uk

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Dear FOI Team,
Thank you for your response dated 22 June.

From your PDF response it seems my original question was edited and the link I included (to the report from the Oxford/Porton Down evaluation of LFDs at https://www.ox.ac.uk/sites/files/oxford/...) was removed.

From my original question (with the inclusion of the link mentioned above), you can see that I already have the information that you have sent me.

My question remains: was there a study done with adequate statistical power that robustly validates LFDs for detection of asymptomatic SARS-CoV-2 in a larger asymptomatic cohort? Or was this the only validation performed by PHE before the use of LFDs for asymptomatic detection was rolled out across the UK?

Yours sincerely,

Steven Hammer

FOI, Public Health England

OFFICIAL

Dear Steven Hammer,

We acknowledge receipt of your email and request for information, which will be treated as a request for information under statutory access legislation.

Please note that requests under the Freedom of Information Act and the Environmental Information Regulations (EIRs) will receive a response within 20 working days from the day following the date of receipt of your request.

If the request is for your personal data, your request has been handled as a data subject access request (SAR) under Article 15 of the General Data Protection Regulation (GDPR), then we will respond within one month of the receipt of the request.

Public Health England (PHE) is responsible for providing guidance and advice to government and front-line services for all aspects of public health. It is a designated Category 1 responder organisation under the Civil Contingency Act and this specifically includes the COVID-19 response, providing clinical expertise and wider public health advice and guidance across national and local government, the NHS and third sector. As such, you may experience delays when making statutory information access requests during the pandemic.

We will aim to address all requests promptly and within the required response timeframes. However when we are unable to meet the response timeframe we will keep requesters updated on a revised expected timescale for a response to their request. The Information Commissioner recognises this position in its recent guidance, see link: https://ico.org.uk/media/2617613/ico-reg...

Public Accountability Unit
Public Health England
[Public Health England request email]
Tel: 020 8327 6920
www.gov.uk/phe Follow us on Twitter @PHE UK

show quoted sections

FOI, Public Health England

1 Attachment

  • Attachment

    588 FOI Linked to 345 Lateral flow tests detecting asymptomatic Covid 19 patients.pdf

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OFFICIAL
Dear Steven Hammer,

Please find attached Public Health England's response to your email, which we have treated as a request for an internal review.

Yours sincerely,

FOI Team
Public Accountability Unit
Public Health England
[Public Health England request email]
Tel: 020 8327 6920
www.gov.uk/phe Follow us on Twitter @PHE uk

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