Renji Hospital's Puxi branch is functioning normally after it was locked down when a worker was diagnosed with coronavirus infection on Thursday. It is the third day the hospital in Huangpu District is under closed-loop management. Outpatient services have been suspended. Many doctors and nurses volunteered to return to the battlefield to treat patients in the hospital, although some of them didn’t have to be quarantined in their workplace but in a designated hotel, said Dr Yue Bing, deputy director of bone and joint surgery department, on Sunday.