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Contents of a box of free COVID-19 rapid antigen lateral flow tests provided by the NHS Test and Trace system. On 2 November 2020, Slovakia became the first country in the world to initiate country-wide mass testing using rapid tests. Five million rapid tests were performed by 60,000 staff who used the SD Biosensor antigen test and performed ...
NHS Test and Trace was a government-funded service in England, established in 2020 to track and help prevent the spread of COVID-19. The programme is part of the UK Health Security Agency ; the service and the agency are headed by Jenny Harries .
Accuracy is measured in terms of specificity and selectivity. Test errors can be false positives (the test is positive, but the virus is not present) or false negatives, (the test is negative, but the virus is present). [179] In a study of over 900,000 rapid antigen tests, false positives were found to occur at a rate of 0.05% or 1 in 2000. [180]
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The British NHS announced that it was piloting a scheme to test suspected cases at home, to remove the risk of one patient infecting others at a hospital or disinfecting an ambulance used to transport a patient. [70] The UK purchased 3.5 million antibody test kits from China, but in early April 2020 announced these were not usable.
On 11 March, NHS England announced that testing in NHS laboratories would increase from testing 1,500 to 10,000 per day. [95] The test consists of taking a sample from the nose, throat, deeper lung samples, blood or stool, and transporting the packed samples to the listed PHE regional laboratory designated for the referring laboratory region.
Initially, it was a separate government programme, but eventually was subsumed within the national NHS Test and Trace programme. Within the operation, a number of semi-independent teams were established at pace to develop and evaluate COVID-19 technologies that at the time were essentially experimental and unproven.
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