One in five vaccinated Britons will experience stool changes with Covid – what to look for

“Diarrhoea caused by Covid is similar to the upset tummy you might get from a regular stomach bug, such as rotavirus or norovirus, and usually clears up by itself,” the study says.

“We think COVID causes diarrhoea because the virus can invade cells in the gut and disrupt its normal function.

“Covid can be transmitted through poo and contaminated surfaces or hands.

“It’s critically important to wash your hands thoroughly and regularly clean bathrooms if you, anyone you live with or someone you’re caring for has diarrhoea to prevent the infection spreading.”