1. Don't leave the country unless it is necessary, and don't go to or go to middle-high risk areas and areas with confirmed cases.
2. For people who have lived in high-risk areas for 7 days, centralized isolation medical observation and management measures were implemented for 7 days, and nucleic acid detection was carried out on 1, 2, 3, 5 and 7 days respectively.
3. For those who have lived in the moderately dangerous area for 7 days, take the management measures of 7-day home isolation medical observation, and conduct a nucleic acid test for 1, 4, and 7-day home isolation medical observers. Do not have the conditions for home isolation medical observation, take centralized isolation medical observation.