The death toll of the coronavirus has risen to 170 and with a confirmed case in Tibet, the virus has now spread to every region in mainland China.
Chinese health authorities have said there were 7,711 confirmed cases in the country as of 29 January.
Infections have also spread to at least 16 other countries.
The World Health Organization (WHO) will meet on Thursday to discuss whether the virus constitutes a global health emergency.
“In the last few days the progress of the virus, especially in some countries, especially human-to-human transmission, worries us,” WHO Director-General Tedros Adhanom Ghebreyesus said on Wednesday, pointing to Germany, Vietnam and Japan.
“Although the numbers outside China are still relatively small, they hold the potential for a much larger outbreak.”