RE: Focus should now switch to the "direct-to-PCR" extraction method18 Apr 2020 08:30
PCR tests are certainly the gold standard.
It is incredible that:
* The UK based its approach, initially, on assuming immunity after recovery from infection, when there was, and remains, according to the WHO, no evidence of immunity after recovery from infection. The UK will have the highest death toll in Europe, perhaps for no gain.
* As is often said, 'Absence of evidence is not necessarily evidence of absence'. Would it be expected that the investigations to date would have produced a definitive answer on whether recovery from infection would give immunity?