1. Department of Laboratory Medical; The First People's Hospital of Hunan Chenzhou; Chenzhou China
2. Key Laboratory for Medical Virology; Ministry of Health; National Institute for Viral Disease Control and Prevention, China; Center for Disease Control; Beijing China
3. Department of Laboratory Medical; The First Affiliated Hospital of Hunan Normal University; Changsha China
4. Department of Paediatrics; The First Affiliated Hospital of Hunan Normal University; Changsha China
5. Yuhang District Center for Disease Control and Prevention; Hangzhou China