On April 15th, Wenqing Pan, deputy secretary of the Provincial Communist Youth League Committee, came to the school to investigate and guide the work of the Communist Youth League.Wei  Xia, director of the Provincial Youth League Office, and Jianlong Fu, director of the College Work Department of the Provincial Youth League, accompanied the investigation. Shan Xu , member of the Standing Committee of the school party committee and vice president, and Yankai  Xia, dean of the School of Public Health, accompanied them to visit the biological sample bank of the Birth Cohort Research Center.