There are currently 1,287 confirmed cases in China, 41 of whom have died.
It comes as China is begins celebrations of the Lunar New Year, one of the most important dates in its calendar.
Many events have been cancelled and a new hospital is being built in the city of Wuhan.
The virus has now spread to Europe, with three cases confirmed in France.
The first case was in Bordeaux, while the other two were in the Paris area, the French health minister said on Friday night.
And one case has been confirmed in Australia.