Why did the green code suddenly turn red?

After the green code holder enters the high and medium risk area, the health code will automatically turn red as long as he stays for 1 hour and the mobile phone is turned on and can receive communication roaming information.

Red team refers to confirmed patients, suspected patients, asymptomatic infected people and their close contacts; Persons living abroad in recent 14 days; Persons who need centralized isolation or home medical observation according to regulations; Other personnel who must be included in the management of red team.

Diagnosed patients and suspected patients should be treated in designated medical institutions; For asymptomatic infected people, medical observation and isolation should be concentrated in designated medical institutions; Centralized isolation or home medical observation shall be carried out for the cured discharged personnel during the rehabilitation period;

For other red team personnel, in principle, 14 days centralized isolation medical observation shall be implemented; For those who live abroad recently, after the expiration of centralized isolation, in principle, they will be observed at home for another 7 days.