The Queen has tested positive for Covid, Buckingham Palace has said.

The monarch is experiencing “mild cold-like symptoms” but expects to continue “light duties” at Windsor over the coming week, the palace said.

“She will continue to receive medical attention and will follow all the appropriate guidelines,” it added in a statement.

People who test positive for COVID-19 are required to self-isolate for at least five days, though the British government says it plans to lift that requirement for England in the coming week.

The queen has received three doses of coronavirus vaccine.

Both her eldest son Prince Charles and daughter-in-law Camilla, Duchess of Cornwall have also recently contracted COVID-19. Charles has since returned to work.

Britain’s longest-reigning monarch, the queen reached the milestone of 70 years on the throne on Feb. 6, the anniversary of the death in 1952 of her father King George VI.

She recently returned to public duties following several months off after she was told to rest by her doctors after spending a night in hospital for tests in October. She was forced to cancel appearances at several key events, including Remembrance Sunday services at the COP26 climate conference in Glasgow, Scotland.