The cruise industry’s worst nightmare has been realised after 10 people on board a Princess Cruises vessel quarantined in Japan tested positive for the Wuhan coronavirus.

And a Genting Hong Kong cruiseship has also been quarantined in Hong Kong after former passengers tested positive for the disease.

Japanese Health Minister Katsunobu Kato said on Wednesday that the 10 confirmed cases were among 31 results from 273 people tested so far on board the 115,900-gt Diamond Princess (built 2004).