Daily Mail UK
By JO MACFARLANE FOR THE MAIL ON SUNDAY
PUBLISHED: | UPDATED:
It has been one of the most enduring Covid conspiracy theories: that the ‘gold standard’ PCR tests used to diagnose the virus were picking up people who weren’t actually infected.
Some even suggested the swabs, which have been carried out more than 200 million times in the UK alone, may mistake common colds and flu for corona.