If someone in your community is infected, your health code may turn yellow or red. If you have ever been to a high-risk area, the health code will automatically turn yellow or red. If you take public transport and someone in the same car is suspected or diagnosed with infection, then as a close contact, your health code will also turn yellow or red.
When citizens stay in areas of epidemic concern or come into contact with high-risk personnel, the health code will become red team. In addition, the health code system is updated in real time according to the comprehensive situation of citizens. When a citizen has a fever of 37.3 degrees and is reported by the administrator, the health code will turn yellow.