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What are people thinking about a second lockdown?
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<blockquote data-quote="bulkbiker" data-source="post: 2309325" data-attributes="member: 219467"><p>There was a nice graphic that I saw earlier on twitter but now I can't find it.. but my point about the PCR test is that it takes microscopic amounts of RNA from the swab which are them amplified multiple times (45 cycles in the UK I believe) producing millions of bits. These are then tested. To get a false negative from that amount of material would be pretty small as they seem to be picking up many different bits of coronavirus (which may or even may not be COVID). That being so a false negative is quite unlikely. You're far more likely to get either a false positive or a positive from someone who has been exposed a while ago and is no longer (or maybe never was) infectious.</p></blockquote><p></p>
[QUOTE="bulkbiker, post: 2309325, member: 219467"] There was a nice graphic that I saw earlier on twitter but now I can't find it.. but my point about the PCR test is that it takes microscopic amounts of RNA from the swab which are them amplified multiple times (45 cycles in the UK I believe) producing millions of bits. These are then tested. To get a false negative from that amount of material would be pretty small as they seem to be picking up many different bits of coronavirus (which may or even may not be COVID). That being so a false negative is quite unlikely. You're far more likely to get either a false positive or a positive from someone who has been exposed a while ago and is no longer (or maybe never was) infectious. [/QUOTE]
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