At present, Hefei does not belong to the middle and high risk area. If you haven't been to the middle and high risk area before, you don't need to be isolated at the border. At present, it is stipulated in jieshou city that people returning from low-risk areas must hold a 48-hour nucleic acid certificate and conduct nucleic acid testing immediately after reaching the border. In principle, it is not allowed to return to the boundary in the middle and high risk area. If it is really necessary to return to (come to) the territory, it is necessary to carry out centralized isolation (at its own expense) for 14 days plus 7 days of home health monitoring measures, and at 1, 2, 2.