[1] Chinese Ctr Dis Control & Prevent, Viral Gastroenteritis Div, Natl Inst Viral Dis Control & Prevent, Beijing 100052, Peoples R China
[2] Beijing Friendship Hosp, Dept Pediat, Beijing, Peoples R China
[3] Dongnan Univ, Dept Epidemiol & Biostat, Sch Publ Hlth, Nanjing, Peoples R China
[4] Changchun Childrens Hosp, Dept Med Res, Changchun, Jilin Prov, Peoples R China
[5] Kunming Childrens Hosp, Dept Infect Dis, Kunming, Yunnan Prov, Peoples R China
[6] Suzhou Municipal Ctr Dis Control & Prevent, Suzhou, Jiangsu Prov, Peoples R China
[7] Maanshan Steel & Iron Trust Hosp, Dept Pediat, Maanshan, Anhui, Peoples R China
[8] Int Vaccine Inst, Div Translat Res, Seoul, South Korea
[9] Ctr Dis Control & Prevent, Resp & Enter Viruses Branch, Div Viral & Rickettsial Dis, Atlanta, GA USA