Is it necessary to isolate Anning District of Lanzhou from Yinchuan?

In 2022, Anning District of Lanzhou City165438+/KLOC-0 returned to Yinchuan for isolation on October 26th. Reported nearly 7 days in advance. 2. Temperature measurement, code test and health tips. 3. Centralized isolation medical observation for 7 days after entering Ning. 4. Nucleic acid detection was carried out five times during centralized isolation. People living in high-risk areas outside the district for 7 days were subjected to centralized isolation medical observation for 7 days, and nucleic acid detection was conducted for 1, 2, 3, 5 and 7 days. The management period starts from leaving the risk area.