A medical team member bids farewell to his family at Changsha South Railway Station in Changsha, central China's Hunan Province, Jan. 10, 2021. An epidemiological investigation team of 23 members left for Shijiazhuang of Hebei Province on Sunday to help fight against the epidemic there. (Xinhua/Chen Sihan) 

A medical team member checks the ticket at Changsha South Railway Station in Changsha, central China's Hunan Province, Jan. 10, 2021. An epidemiological investigation team of 23 members left for Shijiazhuang of Hebei Province on Sunday to help fight against the epidemic there. (Xinhua/Chen Sihan)

A medical team member bids farewell to her family at the provincial center for disease control and prevention in Changsha, central China's Hunan Province, Jan. 10, 2021. An epidemiological investigation team of 23 members left for Shijiazhuang of Hebei Province on Sunday to help fight against the epidemic there. (Xinhua/Chen Sihan)

Medical team members pose for a group photo before leaving at the provincial center for disease control and prevention in Changsha, central China's Hunan Province, Jan. 10, 2021. An epidemiological investigation team of 23 members left for Shijiazhuang of Hebei Province on Sunday to help fight against the epidemic there. (Xinhua/Chen Sihan)

A medical team member bids farewell to her family at the provincial center for disease control and prevention in Changsha, central China's Hunan Province, Jan. 10, 2021. An epidemiological investigation team of 23 members left for Shijiazhuang of Hebei Province on Sunday to help fight against the epidemic there. (Xinhua/Chen Sihan)

A medical team member bids farewell to her family at the provincial center for disease control and prevention in Changsha, central China's Hunan Province, Jan. 10, 2021. An epidemiological investigation team of 23 members left for Shijiazhuang of Hebei Province on Sunday to help fight against the epidemic there. (Xinhua/Chen Sihan)

Source: Xinhua