Epidemiologist Li Lanjuan and team members leave Wuhan(1/5)

Li Lanjuan, a member of the high-level expert team convened by the National Health Commission, waves on a bus before her leaving of Wuhan, Central China’s Hubei province, Mar. 31, 2020. The 73-year-old epidemiologist and her team arrived at Wuhan on February 2 to support the battle against coronavirus there. (Photo: China News Service/ Zhang Chang)

Epidemiologist Li Lanjuan receives interview at a farewell ceremony held for her and her team before their leaving from Wuhan, Central China’s Hubei province, Mar. 31, 2020. (Photo: China News Service/ Zhang Chang)

Epidemiologist Li Lanjuan is seen at a farewell ceremony held for her and her team before their leaving from Wuhan, Central China’s Hubei province, Mar. 21, 2020. (Photo: China News Service/ Zhang Chang)

Epidemiologist Li Lanjuan gives a speech on a farewell ceremony held for her and her team before their leaving from Wuhan, Central China’s Hubei province, Mar. 21, 2020.(Photo: China News Service/ Zhang Chang)

Epidemiologist Li Lanjuan (L3) is seen at a farewell ceremony held for her and her team before their leaving from Wuhan, Central China’s Hubei province, Mar. 21, 2020. (Photo: China News Service/Zhang Chang)