Thousands of cruise passengers have been quarantined for more than a week, with six more days scheduled as a result of the Wuhan coronavirus.

Last Wednesday, two cruise ships announced quarantines because of confirmed cases of the coronavirus on board. Another ship’s quarantine was announced late last week.

The first ship, Diamond Princess, is temporarily docked outside Tokyo. The Japanese Ministry of Health, following the discovery of 10 passengers testing positive, mandates the quarantine. Passengers testing positive were brought shoreside to receive medical care.

Throughout the quarantine, the ship will sail to sea for the production of fresh water. Food and other provisions will be brought on board at Yokohama, Princess Cruises said in a statement.

As a result of the lengthy quarantine, two successive sailings for the ship are canceled. There are currently 2,666 guests and 1,045 crewmembers on the ship.

A second ship docked near Hong Kong after it was denied access to Taiwan. According to reporting by straitstimes.com, three Chinese passengers on board World Dream tested positive. In a statement, the cruise line said those infected disembarked to receive medical treatment.

Meanwhile, a Holland America ship, MS Westerdam, has been denied docking privileges in Japan, Taiwan, the Philippines and Guam because local governments want to protect local populations. The ship departed from Hong Kong Feb. 1, but the cruise line insists there are no cases of the virus on board and that the ship is not under any kind of quarantine.

Holland America said any passenger with Wuhan coronavirus-like symptoms will be screened for the disease.

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