The accuracy issues with PCR tests have been known for years... but I don't see how it changes the reality that hospitals across the world are currently facing, which is an overwhelming number of clincally diagnosed COVID cases.
We've already covered this earlier in the thread, but the idea that false positives are driving the case numbers has been roundly debunked... a quick look at the numbers in the US for example clearly shows that the rise in positive test results cannot possibly be driven by false positives. Since the start of October, the US has increased testing from around 1 million tests per day to almost 2 million per day (a less than 2 fold increase)... meanwhile, positive test results have increased from less than 50000 a day to over 200000 a day, which is over 4 times as many cases.
Testing (of any description) cannot account for the observed increases in hospitalisations, ICU admissions and deaths either - a point even Yeadon cannot explain, though his assertion that it 'must be something other than COVID' is bizarre.
Even Yeadon's own logic trips him up. He has repeatedly stated that "no-one knows the operational false positive rate of PCR tests", and that this means that PCR testing is useless. However, he adds that, according to his own logic, if the oFPR is unknown, then "it could be zero" or it could be 100% (it's not). Hmm, OK. So, what he is saying is that the oFPR could actually be zero, but yet PCR tests are "useless".
The trouble is, he extends his logic to breaking point by saying that PCR tests are useless because the oFPR is unknown, but in the same breath states that PCT testing is generating massive numbers of false positives! Wait a minute... how does he know that? He's literally just said that the oFPR is not known.