1. Vaccine Clinical Research Center, Henan Provincial Center for Disease Control and Prevention, Zhenzhou, HA, China
2. State Key Laboratory of Respiratory Disease & National Clinical Research Center for Respiratory Disease, Guangzhou Institute of Respiratory Health, the First Affiliated Hospital of Guangzhou Medical University, Guangzhou, GD, China
3. Division of Drug and Vaccine Research, Guangzhou Laboratory, Bioland, Guangzhou, GD, China
4. Department of Hepatitis and Enterovirus Vaccine, National Institutes for Food and Drug Control, Beijing, China
5. R&D Department, Shanghai Zerun Biotechnology Co. Ltd, Shanghai, China
6. School of Medicine, Tsinghua University, Beijing, China
7. Vaccine Program Office, Xiangcheng County Center for Disease Control and Prevention, Xiangcheng, HA, China
8. Statistics and Decision Sicence, Beijing Key Tech Statistical Consulting Co. Ltd, Beijing, China
9. R&D Department, Walvax Biotechnology Co. Ltd, Kunming, Yunnan, China