A medical worker bids farewell to his family before leaving for Hubei at Changsha South Railway Station in Changsha, capital of central China's Hunan Province, Feb. 22, 2020. A team of 101 Hunan medical workers left Saturday for Huanggang City of Hubei to aid the novel coronavirus fight there. (Xinhua/Chen Zhenhai)

Staff members guide medical workers to take the train to Hubei at Changsha South Railway Station in Changsha, capital of central China's Hunan Province, Feb. 22, 2020. (Xinhua/Chen Zhenhai)

Medical workers pose for a group photo before leaving for Hubei at Changsha South Railway Station in Changsha, capital of central China's Hunan Province, Feb. 22, 2020. (Xinhua/Chen Zhenhai)