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.
Foreign ministers from European countries, Australia and Britain on Friday jointly condemned Israel's plans to construct a settlement east of Jerusalem.
Famine has struck an area of Gaza and will likely spread over the next month, a global hunger monitor determined on Friday, an assessment that will escalate pressure on Israel to allow more humanitarian aid into the war-torn Palestinian enclave.
North Korean leader Kim Jong Un lauded his country's "heroic" troops who fought for Russia in the war against Ukraine, in a ceremony where he decorated returning soldiers and consoled children of the bereaved with hugs, state media said on Friday.
Former Sri Lankan President Ranil Wickremesinghe, who led the country during a devastating 2019-2024 economic crisis, was arrested and appeared in court on Friday over allegations he misused state funds while in office, police said.
The Arab League has strongly condemned the settlement plan approved by the Israeli government in the area known as E1 east of Jerusalem, stressing that it threatens the territorial continuity of Palestine.