Unsealed. According to the information of epidemic prevention and control, as of September 29, 2022, the risk level of Longhua District belongs to the middle and high level, and the measures of closure and control are implemented. During this period, people will never leave their homes and provide on-site services. There were no new cases of infection in this area for 7 consecutive days. After completing a round of nucleic acid screening on the 7 th day, all the people in the risk area were negative and reduced to a moderate risk area. For three consecutive days, no new infections were reduced to low-risk areas.