A medical team member poses for a photo with his family before leaving for Hubei Province at the Guiyang Longdongbao International Airport in Guiyang, southwest China's Guizhou Province, Feb. 22, 2020. The 9th batch of 176 medical workers from Guizhou Province to Hubei Province departed on Saturday to aid the novel coronavirus fight there. (Xinhua/Tao Liang)

A medical team member says goodbye to his family before leaving for Hubei Province at the Guiyang Longdongbao International Airport in Guiyang, southwest China's Guizhou Province, Feb. 22, 2020. The 9th batch of 176 medical workers from Guizhou Province to Hubei Province departed on Saturday to aid the novel coronavirus fight there. (Xinhua/Tao Liang)

Medical team members attend a ceremony before leaving for Hubei Province in Guiyang, southwest China's Guizhou Province, Feb. 22, 2020. The 9th batch of 176 medical workers from Guizhou Province to Hubei Province departed on Saturday to aid the novel coronavirus fight there. (Xinhua/Tao Liang)

Medical team members pose for a group photo before leaving for Hubei Province at the Guiyang Longdongbao International Airport in Guiyang, southwest China's Guizhou Province, Feb. 22, 2020. The 9th batch of 176 medical workers from Guizhou Province to Hubei Province departed on Saturday to aid the novel coronavirus fight there. (Xinhua/Tao Liang)

Members of a medical team attend a ceremony before leaving for Hubei Province at the Guiyang Longdongbao International Airport in Guiyang, southwest China's Guizhou Province, Feb. 22, 2020. The 9th batch of 176 medical workers from Guizhou Province to Hubei Province departed on Saturday to aid the novel coronavirus fight there. (Xinhua/Tao Liang)

Medical team members take part in a ceremony before leaving for Hubei Province at the Guiyang Longdongbao International Airport in Guiyang, southwest China's Guizhou Province, Feb. 22, 2020. The 9th batch of 176 medical workers from Guizhou Province to Hubei Province departed on Saturday to aid the novel coronavirus fight there. (Xinhua/Tao Liang)

A medical team member gestures before leaving for Hubei Province at the Guiyang Longdongbao International Airport in Guiyang, southwest China's Guizhou Province, Feb. 22, 2020. The 9th batch of 176 medical workers from Guizhou Province to Hubei Province departed on Saturday to aid the novel coronavirus fight there. (Xinhua/Tao Liang)