A health worker of Yonghe health station in Changning Community disinfects in Hefei, east China's Anhui Province, Feb. 20, 2020. Thirty five staff members of the Anhui Branch of China Construction Eighth Engineering Division Corp. Ltd., who attended the construction of the makeshift Leishenshan hospital for novel coronavirus pneumonia patients in Wuhan, have recently come back to Hefei. They are now in quarantine for medical observation in a hotel in Hefei. Each of them has a separate room which is disinfected every day. There are also designated health workers who provide psychological assistance to them. (Xinhua/Zhang Duan)