Medical team members board the flight to Hubei Province at Changshui International Airport in Kunming, capital of southwest China's Yunnan Province, Feb. 16, 2020. The fifth batch of 108 medical workers from Yunnan left for Hubei Province on Sunday to aid the novel coronavirus control efforts there. (Xinhua/Hu Chao)

A medical team member (R) hugs her son before leaving for Hubei Province, in Kunming, capital of southwest China's Yunnan Province, Feb. 16, 2020. The fifth batch of 108 medical workers from Yunnan left for Hubei Province on Sunday to aid the novel coronavirus control efforts there. (Xinhua/Hu Chao)

Medical team members attend a ceremony, before leaving for Hubei Province, in Kunming, capital of southwest China's Yunnan Province, Feb. 16, 2020. The fifth batch of 108 medical workers from Yunnan left for Hubei Province on Sunday to aid the novel coronavirus control efforts there. (Xinhua/Hu Chao)

Medical team members gesture to encourage each other before leaving for Hubei Province in Kunming, capital of southwest China's Yunnan Province, Feb. 16, 2020. The fifth batch of 108 medical workers from Yunnan left for Hubei Province on Sunday to aid the novel coronavirus control efforts there. (Xinhua/Hu Chao)