Pilot Liu Chuanjian waves goodbye before leaving for Hubei Province at his cockpit of an airplane carrying members of the medical team of Sichuan at Chengdu Shuangliu International Airport in Chengdu, capital of southwest China's Sichuan Province, Feb. 9, 2020. Medical teams from across China have been rushing to Hubei Province to aid the novel coronavirus control efforts there. (Xinhua/Wang Xi)