1. Department of Microbiology and Infectious Disease Center; School of Basic Medical Sciences; Peking University Health Science Center; Beijing China
2. Department of Infectious Diseases; Jiangsu Provincial Center for Disease Control and Prevention; Nanjing China
3. Department of Major Projects; Zhengzhou Municipal Center for Disease Control and Prevention; Zhengzhou China
4. Guangxi Zhuang Autonomous Region Center for Disease Control and Prevention; Nanning China
5. Chinese Center for Disease Control and Prevention; Beijing China