1, scientific and precise division of risk areas. According to the building, unit, floor, household delineation of high-risk areas, shall not be arbitrarily expanded to the district, community and streets (townships) and other areas.
2, shall not take various forms of temporary closure and control.
3, the implementation of high-risk areas fast sealing and quick release. No new infected persons for five consecutive days of high-risk areas, to be promptly unsealed.