[1] Chinese Acad Med Sci, Inst Med Biol, Kunming 650118, Yunnan, Peoples R China
[2] Peking Union Med Coll, Yunnan Key Lab Vaccine Res & Dev Severe Infect Di, Kunming 650118, Yunnan, Peoples R China
[3] Yunnan Univ, Sch Life Sci, Kunming 650091, Peoples R China