The monarch is suffering from “mild cold-like symptoms,” but the palace said he plans to continue doing “light duties” at Windsor for the next week.
“She will continue to receive medical attention and will adhere to all applicable standards,” the statement continued.
The Prince of Wales, her eldest son and heir, tested positive on February 10 after meeting his mother on February 8.
At Windsor Castle, where the Queen resides, it is believed that a number of people have tested positive.
The Queen sent a congratulatory message to the Team GB Curling teams later on Sunday, according to the Palace.
She praised the teams’ “excellent performance” at the Winter Olympics, which resulted in a gold medal for the ladies and a silver for the men.
“I’m sure that your local communities and people all over the United Kingdom will join me in expressing our best wishes to you, your coaches, and the friends and family who have helped you achieve such wonderful success,” she continued.
“I am sure I speak for everyone in wishing Her Majesty The Queen a speedy recovery from Covid and a rapid return to bright good health,” Prime Minister Boris Johnson said.
Labour’s Sir Keir Starmer, the leader of the opposition, greeted the monarch “well health and a rapid recovery,” adding, “Get well soon, Ma’am.”
The positive test comes just days before England is poised to eliminate the legal obligation for persons who catch Covid to self-isolate, as the remaining virus restrictions are scheduled to be lifted.
Mr Johnson told the BBC that it was time to “move the balance away from state mandation” and that the public may “regain their faith” in the government’s planned “living with Covid” plans.
On the eve of her Platinum Jubilee, which will honor her 70 years on the throne on February 6, the Queen met with charity workers at Sandringham House for the first time in over three months.
The Queen, who will turn 96 in April, received her first immunization in January 2021 and is said to have received all of her subsequent vaccinations.
Since spending a night in hospital for medical tests in October last year, she has been taking things “much more casually,” according to BBC royal journalist Nicholas Witchell.
The Queen skipped the Remembrance Sunday service in November due to a stiff back, weeks after doctors recommended her to rest following her hospital stay.
It was the first time in her reign as monarch that she did not attend the Cenotaph event in London, unless she was pregnant or overseas.
While on light duties, the Queen is expected to study documents provided to her every day from UK government ministers and Commonwealth representatives, approving and signing them as necessary.
Meanwhile, BBC health correspondent Jim Reed suggested that recently licensed antiviral medications could help the Queen recuperate.
Although it was unclear whether the medications would be supplied to the queen, he said they were now a key approach to reduce the likelihood of vulnerable people needing hospital treatment.
The available antivirals must be used within three to five days of contracting Covid at the moment.
Paxlovid and molnupiravir are two of the medications authorised for use in the UK, and both have shown in medical trials to considerably reduce the chance of hospital admission or death.
The Queen held a virtual meeting with two new ambassadors to the United Kingdom on Tuesday, her first formal engagement since meeting Prince Charles.
During a meeting with defense personnel the next day, she grinned as she mentioned she had mobility issues. “Well, as you can see, I can’t move,” she remarked, standing with a walking stick and pointing to her left leg.
The tone of this telegram from Buckingham Palace appears to be intended to convey crucial information regarding the Queen’s health while also assuaging any fears.
As a result, the risk of the 95-year-old monarch catching Covid outweighs her ability to continue working.
The Queen was back at her desk this morning, as usual, to sign off on a letter of congratulations to the Winter Olympic curling teams.
In terms of what comes next, she will undoubtedly be closely observed by her personal medical staff.
Sir Huw Thomas, the Queen’s physician, has already stated that keeping the Royal Household safe throughout the pandemic is his “first responsibility.”
The Queen received her first immunization last year, and claims that she has received all three shots have never been refuted.
However, the Queen’s health is normally kept a closely guarded secret, with only the most basic data released.
There was no indication whether the Queen had been tested when Prince Charles and Camilla took Covid last week.
As a result, announcing that she has Covid is a big move, and it will put a lot of pressure on her to provide updates.
Prince Charles, 73, was diagnosed with the virus on February 10th, while his wife, the Duchess of Cornwall, 74, was diagnosed with the illness last week.
It was the first time the duchess had caught Covid, and Prince Charles’ second.
Sir Huw Thomas, a consultant at St Mary’s Hospital in London and professor of gastrointestinal genetics at Imperial College London, is the Queen’s personal physician.
He is the “chief of the medical household,” which is part of the Royal Household and is responsible for the family’s health.