PRINCES Charles, 71, has tested positive for coronavirus, Clarence House announced today.

The future king had been displaying mild symptoms but remains in "good health" after being diagnosed with the deadly bug on Monday night.

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12 Prince Charles has tested positive for coronavirus, pictured here at his most recent appearance at an Australian bushfire relief event on March 12 Credit: Getty Images - Getty

12 Prince Charles, seen at the Commonwealth Service earlier this month, last saw the Queen on March 12 Credit: PA:Press Association

12 Prince Charles greets Ant and Dec at the London Palladium on March 11 Credit: Getty - Pool

Camilla, 72, tested negative for the virus, with the couple now self-isolating at their home in Balmoral, Scotland.

It is believed he suffered mild symptoms over the weekend while at Highgrove House in Gloucester and flew privately to Scotland on Sunday night where he was tested on Monday.

It is understood he is in good spirits and remains up and about.

Buckingham Palace has since confirmed the Queen remains in "good health" after heading to Windsor last Thursday with Prince Philip a week earlier than planned.

Charles most recently saw the Queen "briefly" on March 12.

Medical experts believe the earliest Charles would have been contagious was March 13.

Charles has also spoken to both of his sons, Prince William, 37, in Norfolk and Prince Harry, 35, in Canada after the news.

Confirming the news today, Clarence House said: "The Prince of Wales has tested positive for Coronavirus.

"He has been displaying mild symptoms but otherwise remains in good health and has been working from home throughout the last few days as usual."

Another six members of staff now isolating with them.

Clarence House added: "In accordance with Government and medical advice, the Prince and the Duchess are now self-isolating at home in Scotland.

"The tests were carried out by the NHS in Aberdeenshire where they met the criteria required for testing.

“It is not possible to ascertain from whom the Prince caught the virus owing to the high number of engagements he carried out in his public role during recent weeks."

HIGH ALERT

The royal met with Prince Albert of Monaco, who later tested positive for coronavirus, on March 10.

Charles saw the Queen "briefly" two days later on March 12, before his last public appearance at an event for the bushfires affected Australia.

A source said: "He has displayed mild symptoms he is in good spirits.

"He is working and continuing to work for the last few days as usual.

"Medical advice is that it is unlikely that his condition will not escalate into a more serious case here on."

The Prince had been avoiding shaking hands with members of the public at a number of events recently, instead choosing to use the namaste gesture.

He last appeared in public with the Queen, along with princes William and Harry and other senior royals, at the Commonwealth Service at Westminster Abbey on March 9.

A spokesman for Buckingham Palace said: "Her Majesty the Queen remains in good health.

"The Queen last saw the Prince of Wales briefly after the investiture on the morning of the 12th March and is following all the appropriate advice with regard to her welfare."

They will not comment on whether the Queen has been tested for coronavirus.

Prince William remains in Norfolk meaning the heirs to the throne are not in physical contact.

12 Prince Charles is seen opposite the Prince of Monaco on March 10

12 Prince Charles had been avoiding shaking hands during the pandemic Credit: AP:Associated Press

12 Camilla has tested negative to the bug Credit: PA:Press Association

12 Prince Charles greets Rolling Stone Ronnie Wood as he attends the Prince's Trust Credit: Getty - Pool

12 Prince Charles had been conducting investitures, seen here on March 12 Credit: PA:Press Association

12 The Queen is seen here leaving London for Windsor Credit: PA:Press Association

Prince Charles was last seen with his sons and their wives at the Commonwealth Service Credit: PA:Press Association

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It comes as the UK death toll hit 422 yesterday in the biggest daily leap of fatalities.

There are now fears that half of the UK population may have already contracted the virus.

University of Oxford research suggested the disease could have become prevalent in the country two months before the first case was diagnosed.

Sunetra Gupta, professor of theoretical epidemiology at Oxford, led the study and says the UK must now increase testing to discover the true stage of the pandemic.

"We need immediately to begin large-scale serological surveys - antibody testing - to assess what stage of the epidemic we are in now," he told the Financial Times.

The global death toll from the deadly bug has already hit more than 18,000 across the globe.

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It comes as Health Secretary Matt Hancock yesterday called for an army of 250,000 volunteers to join the coronavirus frontline.

Mr Hancock also confirmed that a new hospital called the Nightingale Hospital with capacity for 4,000 people will open next week at the Excel Centre in east London after being set up with the help of the military.

Mr Hancock said that home is now the "front line" in the fight against coronavirus.

12 Prince Albert of Monaco was pictured sitting opposite Prince Charles on March 10 - later testing positive Credit: Getty Images - Getty

12 Prince Charles attended the WaterAid charity event in London on March 10 Credit: PA:Press Association