Clarence House posted a video in their Instagram Story of heir to throne Charles clapping for health workers from Birkhall, his private home on the Balmoral estate in Scotland.
The prince, 71, clapped along as he stood indoors smartly dressed in an open necked shirt, and jacket with a handkerchief in his pocket.
Charles was said to be "enormously touched" by well-wishers' kind words after receiving hundreds of get-well messages, the day after it was revealed he had contracted the disease.
He was not the only royal taking part in the country-wide Clap for Carers.
His grandchildren Prince George, Princess Charlotte and Prince Louis were filmed by the Cambridges applauding.
The tribute was also observed at Windsor Castle where the Queen and the Duke of Edinburgh are staying.
It was no surprise the prince was pictured in a suit despite his mild symptoms of coronavirus.
He is known for his sartorial style, and was previously voted one of GQ's Best Dressed Men, as well as also claiming the title in Esquire magazine.
Charles has entrusted his tailoring to Anderson & Sheppard for several decades, reportedly because he prefers the "soft drape" of the Savile Row institution.
Birkhall is the prince's beloved royal retreat which is nestled in a picturesque glen and which he inherited from his grandmother the Queen Mother.