2. red team covers confirmed patients, suspected patients, asymptomatic infected persons, close contacts of confirmed patients and medical observers.
3. Within the scope of the yellow code, people who have been diagnosed nationwide, people who have no close contact with their peers, people who have symptoms such as fever, fatigue, cough, diarrhea, conjunctival congestion, etc., such as people who have registered for fever clinics, people from other provinces, people who have stayed under observation, and people who have been in other provinces for less than 0/4 days.
4. Green code range: it means that there are no symptoms at present and the health status is basically normal. The validity period of personnel flow and return to production is 3 days, and the health card must be punched in within 3 days, otherwise the health code will be changed to "Gray code".