On February 11, 2020, the Central Epidemic Command Center (CECC) indicated that the global number of cases of 2019 novel coronavirus (2019-nCoV) infection continues growing. Cases of community transmission and cluster without obvious origins of infection have occurred in Hong Kong. In Singapore, more than half of confirmed cases had contracted the coronavirus locally while the third wave of infection was observed. In addition, a cluster case of several attendees from other countries in an international meeting was reported in Singapore. In Thailand, cases without obvious origins of infection and the third wave of infection have occurred whereas the country hasn’t imposed any relevant entry control or quarantine measures on Chinese travelers. For the purpose of prevention and safety, CECC announced today that it has raised the travel notice level for the abovementioned countries. The travel notice level for Hong Kong and Macau has been raised to Level 3: Warning, and the public is advised to avoid non-essential travel to the affected areas. The travel notice level for Singapore has been raised to Level 2: Alert, and the public visiting the area is advised to reinforce personal prevention measures. The travel notice level for Thailand has been raised to Level 1: Watch, and the public is advised to practice usual precautions.