Huang Yan (upper), a medical team member from Xi'an International Medical Center Hospital, bids farewell to her colleague before setting off for Wuhan in Hubei Province, in Xi'an, northwest China's Shaanxi Province, Feb. 3, 2020. A medical team comprised of 212 members from Xi'an International Medical Center Hospital set off on Monday to aid the coronavirus control efforts in Wuhan. (Xinhua/Zhang Bowen)