What is the evidence for this? If true, this is kind of game-changing when we compare it to the New York Times' recent analysis of three states PCR test results, finding that fully 90% of the positive PCR test results required 37 cycle threshold (CT) or higher to get a positive test result. This means that it's just a few RNA fragments being picked up in the swab and if these are in fact just a few dead viruses from the immune system doing its job (i.e. there was never an actual infection) then it means that the large large majority of PCR positives should never be considered positive at all.