Military medics of the People's Liberation Army (PLA) Air Force arrives at Tianhe International Airport in Wuhan, central China's Hubei Province, Feb. 17, 2020. (Photos: Xinhua)

A transport aircraft of the People's Liberation Army (PLA) Air Force arrives at Tianhe International Airport in Wuhan, central China's Hubei Province, Feb. 17, 2020. (Xinhua/Jia Qilong)

Military medics of the People's Liberation Army (PLA) Air Force arrives at Tianhe International Airport in Wuhan, central China's Hubei Province, Feb. 17, 2020.

Military medics format after they deplaned a transport aircraft of the People's Liberation Army (PLA) Air Force at Tianhe International Airport in Wuhan, central China's Hubei Province, Feb. 17, 2020.

Military medics format after they deplaned a transport aircraft of the People's Liberation Army (PLA) Air Force at Tianhe International Airport in Wuhan, central China's Hubei Province, Feb. 17, 2020.

A transport aircraft of the People's Liberation Army (PLA) Air Force arrives at Tianhe International Airport in Wuhan, central China's Hubei Province, Feb. 17, 2020.

A transport aircraft of the People's Liberation Army (PLA) Air Force arrives at Tianhe International Airport in Wuhan, central China's Hubei Province, Feb. 17, 2020.