Heir-to-the-throne Charles, 71, came out of self-isolation on Monday after suffering mild symptoms, with his office saying he was in good health.

In a video address, the Prince said although he had recovered, he was still in a state of social distance and general isolation.

His wife Camilla, Duchess of Cornwall, who had tested negative, is remaining in self-isolation until the end of the week in case she develops symptoms.

"As we are all learning, this is a strange, frustrating and often distressing experience when the presence of family and friends is no longer possible and the normal structures of life are suddenly removed," Prince Charles said.

The number of coronavirus deaths in the UK rose to 1,789 people, figures on Tuesday showed, a 27 per cent increase in a day with one of the victims a 13-year-old boy with no apparent underlying health conditions.

"At such an unprecedented and anxious time in all our lives, my wife and I are thinking particularly of all those who have lost their loved ones in such very difficult and abnormal circumstances, and of those having to endure sickness, isolation and loneliness," Charles said.

He also praised those on the front line in the NHS, saying they needed the country's support.

"It is clearly essential, therefore, that such key people are treated with special consideration when coming off their exhausting duties and trying to do their shopping, for instance, while having to contend with constant anxiety about their own families and friends," Charles said.

