BRIGHTON, England — A British businessman believed to be the source of a cluster of coronavirus cases in Britain and France came forward on Tuesday, saying that he had fully recovered but would remain in isolation as a precaution.

The man, Steve Walsh, from Hove, a town neighboring the popular seaside area of Brighton in southern England, contracted the virus at a conference in Singapore last month, according to his representatives, before traveling on to a chalet in the French Alps where a number of other Britons also fell ill. Mr. Walsh had already been widely identified in the British media as the man who brought the virus to the chalet.

Mr. Walsh thanked doctors for their care in a statement released by a public relations firm representing him and his employer.

“Whilst I have fully recovered, my thoughts are with others who have contracted coronavirus,” said Mr. Walsh, one of at least eight people in Britain who have tested positive for the coronavirus in the past month.