The Queen has not met Prime Minister Boris Johnson in more than two weeks and remains in good health, Buckingham Palace has confirmed.
Mr Johnson announced on Friday that he had tested positive for Covid-19 after developing minor symptoms.
A spokesman said the 93-year-old monarch last met the prime minister on 11 March.
The news comes just days after it was announced that the Prince of Wales - who is the Queen's eldest son and first in line to the throne - had also tested positive for the virus after suffering minor symptoms.
Both Prince Charles, 71, and his wife the Duchess of Cornwall are now self-isolating at Balmoral.