[1] Southeast Univ, Dept Epidemiol & Hlth Stat, Nanjing 210009, Peoples R China
[2] Chinese Ctr Dis Control & Prevent, Natl Inst Viral Dis Control & Prevent, Viral Gastroenteritis Div, Beijing 100052, Peoples R China
[3] Southeast Univ, Sch Publ Hlth, Key Lab Environm Med Engn, Minist Educ, Nanjing 210009, Peoples R China
[4] Capital Inst Pediat, Virol Lab, Beijing Municipal Lab Infect & Immun, Beijing 100020, Peoples R China
[5] Guangzhou Childrens Hosp, Guangzhou 510120, Guangdong, Peoples R China
[6] Fudan Univ, Childrens Hosp, Shanghai 200032, Peoples R China
[7] Fujian Ctr Dis Control & Prevent, Fuzhou 350001, Peoples R China
[8] Soochow Univ, Childrens Hosp, Suzhou 215003, Jiangsu, Peoples R China