The PCR verdict cannot tell these individuals whether they need to self-isolate or whether they might need treatment – the things that really matter to them and society. n some cases, for example, viral RNA might be present in such very low quantities that an individual is not at all infectious and poses zero danger. … Continue reading As people test positive WEEKS after they stop being infectious, why I fear this mania for mass Covid testing is a hugely expensive blunder – Dr Tom Jefferson, Daily Mail