The underground passage of Ningxia University has not been unsealed. As of June 9, 2022, Ningxia belongs to the middle risk area. On the basis of checking the negative proof measures of nucleic acid test within 48 hours, Ningxia implemented the yellow code of nucleic acid test twice every three days for those who returned to Ningning outside the region. Strictly implement peak shifting, reservation and flow restriction for cinemas, shopping malls and tourist places. All colleges and universities in the region implement closed management to ensure the health and life safety of the people in the region.