{"id":801,"date":"2022-01-08T07:27:09","date_gmt":"2022-01-08T07:27:09","guid":{"rendered":"https:\/\/blogs.imperial.ac.uk\/medical-centre\/?p=801"},"modified":"2022-01-08T07:27:09","modified_gmt":"2022-01-08T07:27:09","slug":"its-time-for-more-targeted-use-of-lateral-flow-tests-for-covid-19","status":"publish","type":"post","link":"https:\/\/blogs.imperial.ac.uk\/medical-centre\/2022\/01\/08\/its-time-for-more-targeted-use-of-lateral-flow-tests-for-covid-19\/","title":{"rendered":"It\u2019s time for more targeted use of lateral flow tests for Covid-19"},"content":{"rendered":"

Lateral flow tests for Covid-19 that give a result quickly are a\u00a0key part of the government\u2019s plans to manage the covid-19 pandemic<\/a>\u00a0in England.[1] They are required for key workers such as NHS staff; and for people following guidance from Test and Trace, either because they have a covid-19 infection or have been a close contact of a covid-19 case.\u00a0\u00a0The government also announced recently that other groups of\u00a0workers in essential industries would be required to carry out regular lateral flow tests<\/a>.[2] This would be in addition to the tests required by other groups, such as school children.<\/p>\n

And yet, despite their potential value, the government has been distributing the tests in a very haphazard fashion; with the outcome that many groups \u2013 such as NHS staff \u2013 are complaining that\u00a0they are unable to obtain tests<\/a>.[3] Meanwhile, other groups of people have been using the tests excessively \u2013 including families carrying out daily tests on each family member and in some cases, carrying out multiple tests each day. People have also been using the tests to \u201cmonitor\u201d themselves daily after a positive PCR result for covid-19; something that is not currently required except for tests on day 6 and day 7 of the isolation period in fully vaccinated people.<\/p>\n

As with any area of healthcare, the NHS in England has a limit on the number of lateral flow tests it can offer. Earlier this month, the government stated it was delivering\u00a0300 million tests per month<\/a>.[4] However, even 300 million tests each month (around 10 million tests per day) is nowhere near enough to offer everyone in England a daily lateral flow test. Hence, an appropriate system is needed for prioritising who should have access to the tests; and how the tests are supplied to these groups. The current system whereby most people obtain their tests from the government\u2019s online ordering system means that the tests may not always be\u00a0\u00a0used appropriately\u00a0or by the people who have the highest priority for testing<\/a>.<\/p>\n

The NHS already has well-established systems for prioritising access to health services. We saw this, for example, with the\u00a0Covid-19 vaccination programme<\/a>\u00a0when early access to vaccination was based on clinical need and for occupational protection.[5] This meant that the elderly, the clinically vulnerable and those working in healthcare had the earliest access to vaccination. The same process has not happened in prioritising access to lateral flow tests. Given the high cost of supplying tests to England\u2019s population and their limited global availability, as more countries aim to increase their own use of the test in the face of the wave of infection from the SARS-CoV-2 Omicron variant, it\u2019s essential for the government to reconsider its policies on community covid-19 testing.<\/p>\n

The government is in part responsible for the increased demand for testing from the public that has led to the current shortage of tests. It has encouraged members of the public to test regularly; for example, before social events such as parties; and before meeting friends and family from outside their immediate household. However, it has not offered clear guidance on how frequently to test. NHS staff, for example, are only advised to test twice weekly; far less than some members of the public are currently doing even though they have no medical or occupational reason to test more frequently.<\/p>\n

How can we improve how well lateral flow tests are used? As a first step, the government needs to decide what groups should be prioritised for testing and how frequently they should test. Once the size of these groups and their frequency of testing are known, the government can allocate a large enough sample of tests to meet their needs. Priority groups for access to lateral flow tests will include NHS staff in patient-facing roles; other key workers such as the police and fire service; workers in essential parts of the economy such as public transport; carers of vulnerable people and people working in social care; and people following guidance from Test & Trace. Tests are also needed by schools where testing of pupils is taking place.<\/p>\n

We also need to look at the costs of supplying these tests and determine what we can afford to spend on them. Although the tests are supplied at no cost to the public, they are not free and will come at a considerable cost to the taxpayer. Access to diagnostic services and other health services always has to be limited; and based on factors such as clinical need, health outcomes, and cost-effectiveness. The same rules should apply to lateral flow tests so that the maximum benefit is obtained from spending on covid-19 tests.[6]<\/p>\n

With the UK now facing record numbers of people with covid-19, we need the government to act quickly, decisively and rationally to ensure we maximise the benefits of England\u2019s covid-19 testing capacity. Lateral flow tests can play an important in England\u2019s pandemic response but the same principles of prioritisation should apply in their use as in any other area of healthcare provision.<\/p>\n

A version of this article was first published in the\u00a0British Medical Journal<\/a>.<\/em><\/p>\n

References<\/strong><\/p>\n

    \n
  1. Majeed A. Questions and Answers about Lateral Flow Tests for Covid-19.https:\/\/blogs.imperial.ac.uk\/medical-centre\/2021\/12\/23\/questions-and-answers-about-lateral-flow-tests-for-covid-19\/<\/a><\/li>\n
  2. Walker P.100,000 key workers in England told to take Covid test every working day.\u00a0https:\/\/www.theguardian.com\/world\/2022\/jan\/04\/100000-key-workers-in-england-told-to-take-covid-test-every-working-day<\/a><\/li>\n
  3. Majeed A. Of course England is running out of Covid tests \u2013 the strategy is a flawed one.https:\/\/www.theguardian.com\/commentisfree\/2021\/dec\/30\/running-out-covid-tests-strategy-flawed<\/a><\/li>\n
  4. Johnson B. PM statement to the House of Commons on COVID-19: 5 January 2022.https:\/\/www.gov.uk\/government\/speeches\/pm-statement-to-the-house-of-commons-on-covid-19-5-january-2022<\/a><\/li>\n
  5. Majeed A, Molokhia M. Vaccinating the UK against covid-19 BMJ 2020; 371 :m4654 doi:10.1136\/bmj.m4654<\/li>\n
  6. Raffle A E, Gill M. Mass screening for asymptomatic SARS-CoV-2 infection BMJ 2021; 373 :n1058 doi:10.1136\/bmj.n1058.<\/li>\n<\/ol>\n","protected":false},"excerpt":{"rendered":"

    Lateral flow tests for Covid-19 that give a result quickly are a\u00a0key part of the government\u2019s plans to manage the covid-19 pandemic\u00a0in England.[1] They are required for key workers such as NHS staff; and for people following guidance from Test and Trace, either because they have a covid-19 infection or have been a close contact […]<\/p>\n","protected":false},"author":1115,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[296231,404],"tags":[274465,192],"class_list":["post-801","post","type-post","status-publish","format-standard","hentry","category-coronavirus","category-health","tag-covid-19","tag-testing"],"yoast_head":"\nIt\u2019s time for more targeted use of lateral flow tests for Covid-19 - Medical Centre<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/blogs.imperial.ac.uk\/medical-centre\/2022\/01\/08\/its-time-for-more-targeted-use-of-lateral-flow-tests-for-covid-19\/\" \/>\n<meta property=\"og:locale\" content=\"en_GB\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"It\u2019s time for more targeted use of lateral flow tests for Covid-19 - 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