Eight more Americans aboard a cruise ship quarantined off the coast of Japan have the deadly Chinese coronavirus, according to report.

NBC News reports:

Eleven Americans are among the 61 people from a quarantined cruise ship off Japan who have been confirmed to have the coronavirus, the cruise line said. Princess Cruises said that of 41 newly confirmed cases from the quarantined Diamond Princess, eight are Americans. Earlier this week, 20 other people from the ship had tested positive for the virus, and of those three are from the U.S. Overall, more than 20 of the 61 cases involve Japanese residents. Australians and Canadians are also among those who have tested positive.

The development comes after the 12th U.S. case of coronavirus was confirmed in Wisconsin on Wednesday.

State health officials said the patient had recently come into contact with an individual with the illness virus during a recent visit to China. On Sunday, the Centers for Disease Control and Prevention (CDC) confirmed three cases of the virus were in California. Two patients received treatment in San Benito County and the other in Santa Clara County.

To date, six cases have been confirmed in California, two in Illinois, one in Wisconsin, Washington state, and Massachusetts, and another in Arizona.

As of Friday, the virus’ death toll stands at 636 and 31,161 confirmed cases in mainland China.

President Donald Trump on Thursday discussed the virus with Chinese leader Xi Jinping.

“President Trump expressed confidence in China’s strength and resilience in confronting the challenge of the 2019 novel coronavirus outbreak,” the White House said in a statement. “The two leaders agreed to continue extensive communication and cooperation between both sides.”