Song Baishan (R), head of Zhejiang's second medical team leaving for Wuhan of Hubei Province, waves the team flag during a ceremony before their departure in Hangzhou, east China's Zhejiang Province, Jan. 28, 2020. The second medical team comprised of 149 medical workers from Zhejiang left for Wuhan on Tuesday to aid the novel coronavirus control efforts there. (Xinhua/Huang Zongzhi)