| Authors: |
Qin QY; Office of Epidemiology (Technical Guidance Division for Patriotic Health Campaigns), Chinese Center for Disease Control and Prevention, Beijing 102206, China., Wang QQ; Office of Epidemiology (Technical Guidance Division for Patriotic Health Campaigns), Chinese Center for Disease Control and Prevention, Beijing 102206, China., Wang L; Infectious Disease Prevention, Control and Supervision Institute of Yichang Center for Disease Control and Prevention, Yichang 443000, China., Wang SY; Office of Epidemiology (Technical Guidance Division for Patriotic Health Campaigns), Chinese Center for Disease Control and Prevention, Beijing 102206, China., Sun JF; Office of Epidemiology (Technical Guidance Division for Patriotic Health Campaigns), Chinese Center for Disease Control and Prevention, Beijing 102206, China., Li GX; School of Public Health, Peking University Health Science Center, Beijing 100191, China. |
