First of all, report to the place of return and implement isolation according to local epidemic prevention measures. The specific isolation time and place vary from place to place. Consult local policies.
First, whose health codes will become "red team". People who need medical observation management without traveling, concentration and home isolation. Specifically, it includes: (1) people who are positive for nucleic acid testing, confirmed cases, asymptomatic infected people, suspected cases, close contacts of close contacts, close contacts of close contacts, immigrants, and people who have lived in China's medium and high-risk areas in the past 14 days. (two) during the emergency response to the epidemic, other high-risk personnel who need to be tracked and isolated urgently.