Medical workers set off to aid coronavirus control efforts in Hubei

Medical workers pose for a group photo before setting out for Hubei Province at Xining Caojiapu International Airport in Xining, northwest China's Qinghai Province, Feb. 4, 2020. The second batch of 100 medical members from 25 hospitals in Xining and Haidong set off on Tuesday to aid the coronavirus control efforts in Hubei. (Xinhua/Zhang Long)