Residents in the closed control area and the control area are not allowed to leave the closed control area without special reasons and can work online; Residents in the prevention area advocate home online office. If it is really necessary to go out to work, those who work in this area can travel "point-to-point", and those who work outside the prevention area need 48 hours of negative nucleic acid certificate to pass. Citizens who work in the prevention area and live in other areas do not need documents to enter the prevention area, but they need 48 hours of negative nucleic acid certificates to leave the prevention area. If you go to work through the prevention zone, the health regulations will not change.