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The Clubhouse Bar
[COVID-19] General Discussion
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<blockquote data-quote="Reiser99" data-source="post: 1049854" data-attributes="member: 72977"><p>This is the LFTs that American authorities told their people to stop using as they were unreliable.</p><p></p><p>Some interesting data.</p><p></p><p>NHS website (<a href="https://www.nhs.uk/conditions/coronavirus-covid-19/testing/regular-rapid-coronavirus-tests-if-you-do-not-have-symptoms/" target="_blank">https://www.nhs.uk/conditions/coronavirus-covid-19/testing/regular-rapid-coronavirus-tests-if-you-do-not-have-symptoms/</a>) says they are 99.9% accurate.</p><p>"Research shows rapid tests are 99.9% accurate. This means the chance of getting a false-positive result (where the result shows as positive but is actually negative) is extremely low."</p><p></p><p>However this only applies to people who don't have the virus and the test showing positive. The numbers for people who are infected but test negative are very different.</p><p></p><p>[URL unfurl="true"]https://pharmaceutical-journal.com/article/feature/how-reliable-are-lateral-flow-covid-19-tests[/URL]</p><p>[URL unfurl="true"]https://www.bmj.com/content/372/bmj.n823[/URL]</p><p></p><p>They found that in people with confirmed COVID‐19, antigen tests correctly identified COVID‐19 infection in an <strong>average of 72% (ranging from 34% to 88%) of people with symptoms</strong>, <strong>compared with 58% of people without symptoms</strong>. In addition, they found that the tests were most accurate when used in the first week after symptoms developed.</p><p></p><p>So according to this almost half of people with the virus and no symptoms will be given a negative result and 1/4 of those with symptoms as well. Yay!</p></blockquote><p></p>
[QUOTE="Reiser99, post: 1049854, member: 72977"] This is the LFTs that American authorities told their people to stop using as they were unreliable. Some interesting data. NHS website ([URL]https://www.nhs.uk/conditions/coronavirus-covid-19/testing/regular-rapid-coronavirus-tests-if-you-do-not-have-symptoms/[/URL]) says they are 99.9% accurate. "Research shows rapid tests are 99.9% accurate. This means the chance of getting a false-positive result (where the result shows as positive but is actually negative) is extremely low." However this only applies to people who don't have the virus and the test showing positive. The numbers for people who are infected but test negative are very different. [URL unfurl="true"]https://pharmaceutical-journal.com/article/feature/how-reliable-are-lateral-flow-covid-19-tests[/URL] [URL unfurl="true"]https://www.bmj.com/content/372/bmj.n823[/URL] They found that in people with confirmed COVID‐19, antigen tests correctly identified COVID‐19 infection in an [B]average of 72% (ranging from 34% to 88%) of people with symptoms[/B], [B]compared with 58% of people without symptoms[/B]. In addition, they found that the tests were most accurate when used in the first week after symptoms developed. So according to this almost half of people with the virus and no symptoms will be given a negative result and 1/4 of those with symptoms as well. Yay! [/QUOTE]
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