When the health code turns red, it means that people are in a high-risk state, mainly including these groups of people, such as: people with positive nucleic acid test, confirmed cases, asymptomatic infected people, suspected cases, close contacts of close contacts, close contacts of close contacts, immigrants, people who lived in high-risk areas in China in the past 14 days, etc. , need to take centralized isolation measures.
During 14 days of centralized isolation medical observation, the close contacts of the confirmed cases and asymptomatic infected persons were marked with red team. During the period of centralized isolation, all nucleic acid tests were negative and turned into yellow codes, and family health monitoring was carried out for 7 days. During family health monitoring, all nucleic acid tests were negative and turned into green codes.