One of the Queen's employees at Buckingham Palace tested positive for coronavirus while she was still in residence there, it is reported.
The aide reportedly fell ill and tested positive last week, and Royal Household staff who had contact with the person have been ordered to self-isolate.
It is said the worker was diagnosed with potentially deadly Covid-19 before the 93-year-old monarch moved to Windsor Castle.
The Queen, who has avoided shaking hands during audiences and a recent investiture, has since moved to Windsor Castle earlier than usual for Easter.
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