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Farm Business
Politics, Covid19 and Brexit
When is a positive test not a positive test
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<blockquote data-quote="Muck Spreader" data-source="post: 7918151" data-attributes="member: 137"><p>You have to remember that no test is perfect particularly antigen tests and even the supposed gold standard PCR is can be over sensitive. It could have been the case that the wee lad had already been infected a week or two earlier without showing symptoms as youngsters often do. But it allowed another bacterial or viral infection to take hold, however a subsequent PCR test could still show a +'ve to covid. </p><p></p><p>If you remember back at the start of all this when they were trying to get old folk off cruise ships who had recovered form covid. They needed two -'ve tests on consecutive days, it proved very difficult as one day they would test -'ve but some could then test +'ve the following day and so on.</p></blockquote><p></p>
[QUOTE="Muck Spreader, post: 7918151, member: 137"] You have to remember that no test is perfect particularly antigen tests and even the supposed gold standard PCR is can be over sensitive. It could have been the case that the wee lad had already been infected a week or two earlier without showing symptoms as youngsters often do. But it allowed another bacterial or viral infection to take hold, however a subsequent PCR test could still show a +'ve to covid. If you remember back at the start of all this when they were trying to get old folk off cruise ships who had recovered form covid. They needed two -'ve tests on consecutive days, it proved very difficult as one day they would test -'ve but some could then test +'ve the following day and so on. [/QUOTE]
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When is a positive test not a positive test
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