Buckingham Palace confirmed she had COVID-19 yesterday - and Sky News has been told "a number of cases have been diagnosed within the Windsor Castle team".

Hours after the announcement was made, Her Majesty sent a message of congratulations to the Team GB women's curling team after they won a gold medal at the Winter Olympics.

The 95-year-old monarch is said to be experiencing mild, cold-like symptoms and intends to carry out "light duties" during her recovery.

She is believed to be triple vaccinated, and doctors expect that a team of royal physicians will now be making anti-viral treatments available to her.

Professor Sir Huw Thomas, head of the Medical Household and Physician to the Queen, is expected to be in charge.

It comes as Boris Johnson prepares to unveil England's plan for "living with COVID" at a news conference tonight.

A number of measures are being considered, with Downing Street confirming that those who test positive for coronavirus will no longer have to self-isolate by the end of this week.

Yesterday, the prime minister tweeted: "I'm sure I speak for everyone in wishing Her Majesty The Queen a swift recovery from COVID and a rapid return to vibrant good health."

Read more: Which other members of the Royal Family have had COVID?

Dr David Nicholl, a leading neurologist, says vaccines have made a "jaw-dropping difference" to the impact that COVID-19 has on elderly people.

While he does not know the Queen's full medical background, he added: "I would expect she is going to make a full recovery.

"I would say, for someone who is fully vaccinated, boosted, they are most likely to have a very mild illness - a bit of a cold and that's it sort of thing.

"It's difficult because if someone is elderly, the age of 95 or so, people can get other things."

Read more: How doctors will look to treat Her Majesty after COVID diagnosis

The Queen has recently suffered from health difficulties. On Wednesday, the monarch was seen standing with the help of a walking stick - and remarked during an in-person audience: "Well, as you can see, I can't move."

Several other members of the Royal Family have tested positive for COVID in recent weeks - including Prince Charles and the Duchess of Cornwall.

Sky News royal commentator Alastair Bruce said the Queen is "no lover of fuss", but is in an "environment where she can be very well looked after".

He added: "I think the Queen's always been aware that one day she would get it.

"For a very feisty and determined lady of her mid-90s, she is more than ready to deal with what she faces."