In high-risk areas, measures such as home and door-to-door service should be implemented; In the middle-risk area, implement control measures such as outside the area and off-peak in the east and west; Low-risk areas should implement personal protective measures such as wearing masks, washing hands frequently, and not gathering ventilation, and consciously abide by epidemic control measures in their jurisdictions. The regional scope and control requirements will be adjusted according to the changes in the epidemic prevention and control situation. For those who have lived in the epidemic area in the last 7 days, when the epidemic area is large, the community spreads widely and the risk of spillover is high, measures of home health monitoring, community health monitoring and health management corresponding to high and medium risk areas should be taken.