1. red team personnel are close contacts, and after they become red team, they need to take 14+7 isolation measures, which are centralized isolation 14 and home health observation for 7 days respectively, in which 4 nucleic acid tests are completed within centralized isolation 14 days, and the green code can be changed after 2 nucleic acid tests are completed within 7 days of home health monitoring.
2. If the person in the red code is a sub-close contact, after the health code turns red, the centralized isolation and nucleic acid detection are completed for 7 days, and all the results are negative, and the close contacts are also negative, so the green code can be restored.