The Duchess of Cornwall has tested positive for COVID-19, Clarence House has said.

Camilla, 74, caught the virus for the first time just days after her husband the Prince of Wales caught it a second time.

A Clarence House spokesman said on Monday: “Her Royal Highness The Duchess of Cornwall has tested positive for COVID-19 and is self-isolating.

“We continue to follow government guidelines.”

The duchess, 74, carried out a string of engagements on the same day. She described herself then as “luckily” negative, saying of her testing regime during a visit to Thames Valley Partnership in Buckinghamshire: “I’ve taken it so many times.”

Both Charles and Camilla have been fully vaccinated against COVID-19, including a booster shot.

Charles, Prince of Wales, tested positive last Thursday, on a day when the duchess carried out a number of engagements.

The Queen was in contact with Charles, her eldest son, two days before he tested positive, but Buckingham Palace said on Thursday that she was not displaying any symptoms.

The palace refused to confirm whether the 95-year-old had tested positive for the virus, however, citing privacy.