A British businessman who became known as a "super-spreader" of coronavirus said he had fully recovered but remained in isolation in a central London hospital.
Steve Walsh issued a statement from Guy's and St Thomas' Hospital after catching the virus on a business trip in Singapore.
He is believed to have infected at least 11 other Britons - five in a ski chalet in the French Alps and another five who have since returned to his home city of Brighton.
Another person was diagnosed while on holiday in Spain.
Mr Walsh said he contacted the NHS as soon as he realised he might be sick.
"As soon as I knew I had been exposed to a confirmed case of coronavirus, I contacted my GP, NHS 111 and Public Health England," the 53-year-old said.
"I was advised to attend an isolated room at hospital, despite showing no symptoms, and subsequently self-isolated at home as instructed," he added.
"When the diagnosis was confirmed I was sent to an isolation unit in hospital, where I remain, and, as a precaution, my family was also asked to isolate themselves."
Mr Walsh works for a British natural gas analytics company called Servomex and was attending a business conference at the Grant Hyatt hotel in Singapore where it is believed he became infected.
The UK has so far recorded eight cases.
Read More:
Coronavirus emergency 'holds a very grave threat' for world - WHO
Eight days in Wuhan, cut off from the world
Indeed Irish workers told to work from home due to virus concerns
Yesterday a medical centre in Brighton was closed because two of its staff were confirmed as having the virus.
A second branch of the same medical centre closed today.
Mr Walsh travelled to the French Alps before returning to London from Geneva on an EasyJet flight carrying more than 100 people.
He put himself in "self-isolation" after one of his colleagues abroad fell ill.
Health officials in Brighton are currently trying to trace patients of the two healthcare workers diagnosed with the virus strain.
Paul Cosford, a former director of Public Health England, said the risk to patients of the Brighton clinic remained small.
"There is not a general risk to any patient of the NHS in that area," he told BBC radio.
"We will be - and have already been - identifying the people who have been in particularly close contact."
Ireland's National Public Health Emergency Team is meeting to review the latest situation with coronavirus.
There has been no officially confirmed case of the virus in Ireland.
To date tests have been conducted on over 30 suspected cases since last Friday, all of which which have tested negative.
Three other suspected cases are undergoing testing and it is understood they are not expected to test positive.
The emergency team is meeting on a weekly basis each Tuesday.
