Chinanews.com, March 18. According to the official WeChat news of the Shanghai Health and Health Commission, from 0 to 24:00 on March 17, 2022, Shanghai added 57 new local confirmed cases of new coronary pneumonia and 203 asymptomatic infections, of which 2 confirmed cases and 103 asymptomatic infections were found in isolation and control, and the rest were found in the investigation of relevant risk groups. There were 10 new confirmed cases of imported new coronary pneumonia and 2 asymptomatic infections, all of which were found in closed-loop control.