In the UK over the last few weeks, there have been a growing number of reports of people testing positive for COVID on a lateral flow test (LFT) but then negative on a polymerase chain reaction (PCR) ...
The rules on when to take a PCR test and when to take a lateral flow have changed in England, as the UK hits more than 142,000 daily Covid cases. From January 11, those without symptoms do not need to ...