The footman may have come into contact with the Queen while he had the coronavirus as duties include walking her dogs, handing her letters and taking her drinks and meals. The member of staff is currently in self-isolation to try and recover from the deadly virus. More than 1,000 people have died from the pandemic across the UK and Prime Minister Boris Johnson has written to every household urging people to stay at home to avoid spreading COVID-19.
People are able to spread the virus even if they are not showing symptoms, which is why there are concerns for the Queen and the Duke.
The Queen is 93-years-old and would fit into the Government's ‘vulnerable' category of the population with regards to the virus.
Her husband, Prince Phillip is 98-years-old and the pair of them have moved to Windsor Castle where they are being looked after by fewer staff than normal.
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One royal source said to The Sun: "Everyone is terrified, not just for themselves but also for the Queen and the Duke.
"If everyone around them hasn't been tested yet they should be and I'm sure they will be.
"There is a palpable sense of fear in the air at the moment."
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The virus does not discriminate in terms of who it affects and Prince Charles has tested positive for it.
The Prince of Wales has been self-isolating at Balmoral in Scotland and said he only had mild symptoms.
His wife, the Duchess of Cornwall has tested negative.
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Prime Minister Boris Johnson has also tested positive for COVID-19 and even led his cabinet meeting from video conference so he could self-isolate.
The royal insider has said: "The footman would come and collect the dogs and see the Queen on a daily basis performing normal duties.
"It's terrifying to think how close they were."
Buckingham Palace released a photo of the Queen speaking to Prime Minister Boris Johnson last week in a possible sign to show the monarch is in good health.
The Palace has made it clear that they are following all the medical advice for the welfare of the monarch.
A Buckingham Palace spokesman said last night to The Sun : "The Queen is in good health and we are following all the appropriate advice.
"We do not comment on individual members of staff."