Shanghai New Coronary Pneumonia Epidemic Prevention and Control Leading Group Office released news: According to epidemiological investigation, gene sequencing comparison and comprehensive analysis of expert group: Songjiang, Jiading, Minhang, Huangpu, Xuhui, Baoshan, Pudong New Area and other districts in Shanghai recently There are clear epidemiological correlations in the epidemics. The virus gene sequencing shows high homology. The source of infection is focused on: the virus carried by imported cases from abroad contaminates the environment, and the local infection and spread due to management omissions.

  (Headquarters CCTV reporter Wang Dianjia)