The Duchess of Cornwall has tested positive for Covid-19, according to Clarence House.
It is understood that Camilla has received all three doses of the coronavirus vaccine and is now self-isolating.
A Clarence House spokesman said: "Her Royal Highness The Duchess of Cornwall has tested positive for Covid-19 and is self-isolating.
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"We continue to follow government guidelines."
It comes a few days after her husband Prince Charles also tested positive for the virus on Thursday morning which forced him to cancel a visit to Winchester.
Last week, both the Duchess of Cornwall and Prince Charles met with Chancellor RIshi Sunak and others at a reception in the British Museum.
It was confirmed by a royal source that the Prince of Wales met the Queen two days before testing positive for Covid-19.
Buckingham Palace has not yet confirmed whether the Queen has tested positive for the virus.
Under current Covid rules, Camilla must self-isolate for 10 full days which could be shortened if she tests negative on day five and day six consecutively.
