About the Authors

Dapeng Zhang

Affiliation National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China

Sining Meng

Affiliation National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China

Peng Xu

Affiliation National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China

Hongyan Lu

Affiliation Beijing Centers for Diseases Control and Prevention, Beijing, China

Minghua Zhuang

Affiliation Shanghai Municipal Center for Disease Control and Prevention, Shanghai, China

Guohui Wu

Affiliation Chongqing Center for Disease Control and Prevention, Chongqing, China

Yanling Liu

Affiliation Harbin Center for Disease Control and Prevention, Harbin, China

Xiaohong Pan

Affiliation Zhejiang Provincial Center for Disease Control and Prevention, Hangzhou, China

Hongjing Yan

Affiliation Jiangsu Provincial Center for Disease Control and Prevention, Nanjing, China

Xi Chen

Affiliation Hunan Provincial Center for Disease Control and Prevention, Changsha, China

Lirui Fan

Affiliation Guangzhou Center for Disease Control and Prevention, Guangzhou, China

Chengmei Li

Affiliation National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China

Xiaojing Fu

Affiliation National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China

Jinlei Qi

Affiliation National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China

Lei Han

Affiliation Shandong Provincial Center for Disease Control and Prevention, Jinan, China

Fuchang Ma

Affiliation National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China

Fan Lv

Affiliation National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China

Jiangping Sun

jpsun@chinaaids.cn

Affiliation National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DZ SM HL MZ GW YL XP HY XC LF CL LH JS. Performed the experiments: DZ SM PX HL MZ GW YL XP HY XC LF CL JS. Analyzed the data: DZ SM PX XF JQ LH FM FL. Contributed reagents/materials/analysis tools: HL MZ GW YL XP HY XC LF. Wrote the paper: DZ SM PX CL XF JQ LH FM FL JS.