High-risk area: The blockade can be lifted if there is no new local confirmed case within 4 days after the last case is diagnosed/kloc-0. High-risk areas take extremely strict measures to deal with the epidemic, and decisively take control measures such as stopping work, closing business and suspending classes. If necessary, regional blockade can be adopted to restrict personnel from entering and leaving. Be transferred to high-risk areas, organize comprehensive household investigation, and those with symptoms such as fever, dry cough, fatigue and diarrhea will be sent to designated medical institutions for investigation, diagnosis and treatment in time.
Medium-risk area: it can be unsealed in general 14 days, depending on whether there are new cases in the closed community. 1 If the nucleic acid test is negative within 4 days after the positive case appears/kloc-0, it can be unsealed. However, during the period of 14 days, new cases appear one after another, and the unsealing time will be calculated again. After lifting the closure, it will enter a seven-day transition period, which will bring health home.
In the monitoring mode, if all the nucleic acid tests are negative on the last seventh day, it will enter the stage of normalization prevention and control and return to normal life.