1. Beijing Office of Global Health, Beijing Center for Disease Prevention and Control, Beijing, China
2. Center for Disease Control and Prevention of Changzhou City, Changzhou, Jiangsu, China
3. Clinical Research and Development Center, Sinovac Biotech, Beijing, China
4. Quality Assurance Department, Sinovac Biotech, Beijing, China
5. Hepatitis A Department, Sinovac Biotech, Beijing, China
6. QMS General Office, Sinovac Biotech, Beijing, China
7. Emergency Department, Center for Disease Control and Prevention of Changzhou City, Changzhou, Jiangsu, China