He said: “Sooner or later we will see secondary outbreaks, the only question is what their reach will be, how many people will get out of China and infect other people in the countries they can reach.
“To date, several dozen cases of infections have been reported outside of Asia but so far outside of Germany, they have not resulted in secondary infections.”
According to John Hopkins University in the US, Singapore, Hong Kong and Thailand has suffered the most infections outside of China with 43,38 and 32 respectively.
In Europe, at least 14 people have been infected in Germany, 11 in France three in Italy, one in Finland, one in Sweden and one in Brussels.
A total of nine Britons are now also confirmed to have been infected with the novel coronavirus.
Symptoms of a coronavirus infection typically start with a cough, high temperature and shortness breath.