Coronavirus positives 7 Japan, 3 United States, 3 Hong Kong, 2 Canada, 2 Australia, 1 Taiwan, 1 New Zealand, 1 Philippines
https://www.miamiherald.com/news/business/tourism-cruises/article239983068.html

The Japanese health ministry is holding the Diamond Princess cruise ship in Yakohomo, outside of Tokyo, and testing all 3,711 people on board because a man tested positive for the virus on Feb. 1 after disembarking. On Tuesday, Japanese officials found 10 people on the cruise ship had the virus. By Wednesday, 10 more tested positive, bringing the total to 20.

Seven of the infected passengers are from Japan, three from the U.S., three from Hong Kong, two from Canada, two from Australia, one from Taiwan, and one from New Zealand. One person is a Princess Cruises crew member from the Philippines.

The Japanese military has taken the people who have the virus to local hospitals, the cruise line said in a statement. Around half of the 2,666 passengers on board the ship are from Japan; 416 are from the U.S.

New coronavirus infection confirmed on a cruise ship calling at Yokohama Port
　The cruise ship “Diamond Princess”, which arrived at Yokohama Port on February 3, is undergoing quarantine at sea. As coronavirus positivity was confirmed, we will carry it to a medical institution in Kanagawa today. Positive cases were confirmed in 20 of 102 people, including yesterday.
 
　Those who are transported include elderly people and foreign nationals, and it is necessary to take measures that take into account physical conditions. The press is requested to give special consideration to coverage of this matter.
 
　Quarantine of the cruise ship continues to be implemented. We are currently conducting a new coronavirus test for those who need it, and the results will be announced later.
https://www.mhlw.go.jp/stf/newpage_09340.html