Queen Elizabeth, 95, has tested positive for COVID and is experiencing mild symptoms, Buckingham Palace said on Sunday.
"The queen has today tested positive for COVID," the Palace said. "Her Majesty is experiencing mild cold like symptoms but expects to continue light duties at Windsor over the coming week.
"She will continue to receive medical attention and will follow all appropriate guidelines."
Charles, 73, the heir to the throne, earlier this month pulled out of an event after contracting coronavirus for a second time. A palace source said he had met the queen just days before.
The health of the queen, the world's oldest and longest-reigning monarch, has been in the spotlight since she spent a night in hospital last October for an unspecified ailment and then was advised by her doctors to rest.
Elizabeth on Wednesday quipped to members of the royal household that she could not move much as she carried out her first in-person engagement since Charles tested positive.


Nepal to rebuild early-warning system on China border after deadly flood, sources say
Kuwait air defences deal with Iranian missile, drone attacks
Two Palestinian teens killed in West Bank raid by Israeli settlers, army
Latest Indonesian free meal poisoning outbreaks affect 800, lawmaker says
Chinese students marooned in floods unleashed by Typhoon Saudel's rains
US and Iran exchange attacks as lull in war appears over
Malta court clears businessman over murder of investigative journalist
Kuwait confirms no injuries after Iranian drone hits residential complex
