There are three "health codes":
That is, the green code can enter Hangzhou directly, the red code is isolated 14 days, and the yellow code is isolated within 7 days.
The health coding system has formed a set of standards, which can be quickly introduced according to the needs of different regions and the needs of epidemic prevention and control in various places.
The role of health code:
Through the color of health code, you can quickly identify whether a person has passed through provinces and cities with serious epidemic situation and whether he has directly or indirectly contacted infected people. Then through big data analysis, you can directly lock and find people who may be infected.