A man puts a sticker with his name to the vest of Li Lanjuan, a renowned Chinese epidemiologist, to show respect during a farewell ceremony in Wuhan, central China's Hubei Province, March 31, 2020. Medical staff leading by Li Lanjuan left Wuhan after finishing their task here on Tuesday. Li is an academician with the Chinese Academy of Engineering, who heads the State Key Laboratory for Diagnosis and Treatment of Infectious Diseases. (Xinhua/Fei Maohua)
