1. Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of China
2. Hubei Center for Disease Control and Prevention, Wuhan, People’s Republic of China
3. Chinese Center for Disease Control and Prevention, Beijing, People’s Republic of ChinaInternational Field Epidemiology Training Program, Bangkok, Thailand
4. National Institute for Viral Disease Control and Prevention, Beijing, People’s Republic of China
5. Guangdong Center for Disease Control and Prevention, Guangzhou, People’s Republic of China
6. Shanghai Center for Disease Control and Prevention, Shanghai, People’s Republic of China
7. Fujian Center for Disease Control and Prevention, Fuzhou, People’s Republic of China
8. Sichuan Center for Disease Control and Prevention, Chengdu, People’s Republic of China
9. Shenzhen Center for Disease Control and Prevention, Shenzhen, People’s Republic of China
10. World Health Organization, Beijing, People’s Republic of China
11. Centers for Disease Control and Prevention, Atlanta, Georgia, USA