Medical workers gather before setting out for Wuhan of Hubei Province in Chengdu, capital of southwest China's Sichuan Province, Feb. 3, 2020. A medical team comprised of 72 members, most of whom come from Sichuan Provincial People's Hospital, set off on Tuesday to aid the coronavirus control efforts in Wuhan. The medical team is equipped with water and electricity integrated engineering vehicle, surgical operation vehicle, lodging van and support vehicle and is able to serve as a "mobile hospital". (Xinhua/Liu Kun)