Yishui Jiayuan cannot be unsealed. According to public information, as of September 2022, due to repeated epidemics, large-scale and very large-scale screening was needed, and mixed inspections were taken. 10: 1 in the early stage, and 20: 1 in the later stage. Key areas are delineated according to the previous epidemiological situation, the number of cases and the possible potential risks in the mode of transmission, and are delineated by the town as a unit. After demarcation, the flow of people in these towns will be reduced.