1. Department of Infectious Diseases, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
2. Divison of Virology, Department of Clinical Laboratory, Children’s Hospital of Fudan University, National Children’s Medical Center, Shanghai, China
3. Department of Infectious Diseases, Hainan Women and Children’s Medical Center, Shanghai, China
4. Department of Infectious Diseases, Anhui Provincial Children’s Hospital, Shanghai, China
5. Children’s Medical Center, The Affiliated Hospital of Qingdao University, Shanghai, China
6. Department of Pediatric Infectious Diseases, Haikou People’s Hospital, Haikou, Hainan, China
7. Department of Pediatrics, Sanya Central Hospital, Shanghai, China