People who have died from the coronavirus outbreak have now reached 170, with confirmed cases of the disease in every region in mainland China.
There were 7,711 confirmed cases in the country as of January 29, according to Chinese health authorities.
An estimated 9,000 others are being tested for the illness in Wuhan, the epicenter of the outbreak.
Infections have also spread to at least fifteen other countries, including Germany, Vietnam and Japan, where there have been cases of people catching the virus from others who have been to China.
The World Health Organization (WHO) will meet on Thursday to again consider whether the virus constitutes a global health emergency.
“Although the numbers outside China are still relatively small, they hold the potential for a much larger outbreak,” director-general of the World Health Organisation (WHO) Tedros Adhanom Ghebreyesus said on Wednesday.
More people have now been infected in China than during the Sars outbreak in the early 2000s, although the death toll remains far lower.
Meanwhile, evacuations of hundreds of foreign nationals from Wuhan are under way to help people who want to leave the city and return to their countries.
Australia, the UK, Singapore, New Zealand and South Korea are expected to quarantine all evacuees for two weeks to monitor them for symptoms and avoid any contagion.