Both the cat and the humans made a full recovery and there was no transmission to any other animals or people in the household, the ministry said without identifying the individuals involved.
“This is the first case of a domestic cat testing positive for COVID-19 in the UK but should not be a cause for alarm,” said Yvonne Doyle, medical director at Public Health England.
The WHO has said it will investigate the possibility of cat-to-human infection, but its chief scientist has said there is “very little risk” from domestic animals.