About the Authors

Ning Miao

Roles Writing – original draft

Affiliation Chinese Center for Disease Control and Prevention, Beijing,China

Hui Zheng

Roles Methodology

Affiliation Chinese Center for Disease Control and Prevention, Beijing,China

Xiaojin Sun

Roles Investigation

Affiliation Chinese Center for Disease Control and Prevention, Beijing,China

Liping Shen

Roles Investigation

Affiliation Chinese Center for Disease Control and Prevention, Beijing,China

Feng Wang

Roles Methodology

Affiliation Chinese Center for Disease Control and Prevention, Beijing,China

Fuqiang Cui

Roles Supervision

Affiliation School of Public Health, Peking University, Beijing, China

Zundong Yin

Roles Supervision

Affiliation Chinese Center for Disease Control and Prevention, Beijing,China

Guomin Zhang

Roles Supervision

miaoning2003@126.com, zhanggm@chinacdc.cn (GZ); wangfz@chinacdc.cn (FW)

Affiliation Chinese Center for Disease Control and Prevention, Beijing,China

Fuzhen Wang

Roles Methodology

miaoning2003@126.com, zhanggm@chinacdc.cn (GZ); wangfz@chinacdc.cn (FW)

Affiliation Chinese Center for Disease Control and Prevention, Beijing,China

Competing Interests

The authors have declared that no competing interests exist.