2. Yellow code: the quarantine shall be implemented within 7 days, and the health punch for 7 consecutive days (no more than 7 days) will be normally turned into a green code.
3. red team: quarantine was implemented for 14 days, and the health clock 14 days normally turned into a green code.
Health codes are based on real data and can be generated by citizens or people who have returned to work through online declaration and background audit. As an individual entering and leaving electronic certificate locally, the QR code can be declared once, which is universal in the whole city.
The introduction of the health code aims to make the work of returning to work more accurate, scientific and orderly.