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UK COVID-19 Update: Infections Still Rising? 1 in 4 Doctors Sought Mental Health Help
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Lateral flow tests detect most infectious COVID-19 cases, Oxford researchers find
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The truth about lateral flow devices – how reliable and accurate are they? LFDs are designed to tell you whether you are infectious for the next 12 hours: no longer than that. They only work if used daily
19 January 2021 • 5:30am
A student takes a swab for a lateral flow Covid-19 test at the University of Hull
Credit: OLI SCARFF/AFP
More than a billion pounds has been spent on rapid coronavirus testing, hailed by Boris Johnson as Britain’s “Moonshot” at stopping Covid-19 in its tracks.
Cheap, readily-available and able to produce a result in as little as 20 minutes, the Prime Minister has long placed his faith in lateral flow devices (LFDs) as a route out of the Covid-19 crisis.
The scientists behind the Government s Moonshot testing plans have leapt to the defence of lateral flow coronavirus tests - even after their own study found they were less than 50 per cent reliable at detecting the virus.
Experts who masterminded the pilot in Liverpool say the rapid tests are very helpful and a good alternative to the swab tests that take much longer to process.
Lateral flow devices, or LFDs, have been touted as a way to get Britain back to normal faster because they are cheap and give results within 30 minutes.
By comparison, the gold standard PCR tests take two to three days to identify positive cases, leaving more time for someone who is infected to return to the community, potentially spreading the virus.