There are fears the mass gathering of more than 250,000 people during the Cheltenham Festival last month helped spread the disease widely across the country as famous faces and members of the public who attended have tested positive.

The comedian Lee Mack spent two days at the pinnacle of the jump racing season before testing positive for Covid-19, with a friend saying he believed he caught it off his driver when travelling to the event.

Andrew Parker Bowles, the former husband of the Duchess of Cornwall, has also caught the coronavirus and said he thinks he “probably got it on the Wednesday or Friday I attended Cheltenham”.

During those two days he was photographed in close contact with Camilla, as well as Princess Anne, her