摘要
China has been declared malaria-free by the World Health Organization Dong Xueshu, an 86-year-old researcher with the Yunnan Institute of Parasitic Diseases in Yunnan Province, has been studying mosquitoes for seven decades.Dong’s research started in 1956, when a malaria epidemic broke out in Menghai, a county in Xishuangbanna Dai Autonomous Prefecture, Yunnan.
