How soon can the high-risk area be transferred to low risk?

1. It takes 10 days for a high-risk area to drop to a low-risk area at the earliest (provided there are no new infections).

2. Criteria for the classification of high-risk areas: the residence of cases and asymptomatic infected persons, as well as areas with frequent activities and high risk of epidemic spread are classified as high-risk areas. In principle, the residential area (village) is defined as a unit, and the dangerous area can be adjusted according to the results of the mobile survey.

3. Prevention and control measures in high-risk areas: the measures of sealing and control shall be implemented, during which "stay at home and provide on-site service". If new infected persons are found during the containment period, the local joint prevention and control mechanism will organize risk judgment, and the containment time of the original containment area can be extended in whole or in part according to the requirements of "one area, one policy".

4. Nucleic acid detection in high-risk areas: three consecutive tests were conducted in the first three days after the implementation of closed control, two full-time nucleic acid tests were completed on the 1 day and the third day, and one antigen test was conducted the next day. The frequency of subsequent tests can be determined according to the test results; Within 24 hours before deregulation, full-time nucleic acid detection should be completed in this area.

5. High-risk area promotion standard: no new infection for 7 consecutive days, and all the people in the risk area were negative after completing a round of nucleic acid screening on the 7 th day, which was reduced to a medium-risk area; For three consecutive days, no new infections were reduced to low-risk areas.