1. Department of Vaccine Evaluation, Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China
2. Clinical Research Department, Sinovac Biotech Co., Ltd., Beijing, China
3. Center for Research & Department, Sinovac Biotech Co., Ltd.,Beijing, China
4. Statistics department, Beijing Key Tech Statistic Technology Co., Ltd, Beijing
5. Clinical Research Department,Sinovac Biotech Co., Ltd., Beijing China
6. WHO WPRO Regional Reference Measles/Rubella Laboratory, National Institute for Viral Disease Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China