Risk area: No.233 Henan North Road, Beizhan Street, Jing 'an District, Shanghai (medium risk) No.281Changdao Road, Hudong Xincun Street, Pudong New Area, Shanghai (medium risk) Yonghui Supermarket, Huting North Road, Jiuliting Street, Songjiang District, Shanghai (medium risk) Shiquan Community Cultural Center, No.33 Ningqiang Road, Shiquan Street, Putuo District, Shanghai (medium risk) Caoxi North Road, Xujiahui Street1