The death toll from the coronavirus has risen to 563, with the number of confirmed cases now at 28,018.
The World Health Organisation has appealed for more funds to help countries battle the spread of the disease, as 5,400 people remain quarantined on two cruise ships in Asia.
In the port city of Yokohama, Japan, health workers said 20 people from the cruise ship Diamond Princess were confirmed to be ill with the virus.
Outside mainland China, at least 230 cases have been confirmed, including two fatalities – one in Hong Kong and another in the Philippines.
The death toll in mainland China rose to 563 on Thursday, up by a record 70 from the previous day, the National Health Commission said.
The total number of infections in China rose by 3,694 on Thursday to 28,018.
Nearly 260 cases have been reported in 31 other countries and regions outside mainland China, according to a Reuters tally based on official statements from the authorities involved.
There have been two deaths outside mainland China, in Hong Kong and the Philippines.
Ten more people on a quarantined cruise liner in the port of Yokohama south of Tokyo have tested positive for coronavirus.
In the United States, another 350 American evacuees from Wuhan were placed under quarantine at two military bases in California.
In Hong Kong, 3,600 passengers and crew were confined to their ship docked in the city for tests after three people on board had tested positive earlier.