About the Authors

Huachun Zou

Affiliations Division of Health Education and Behavioral Intervention, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China, Sexual Health Unit, School of Population Health, University of Melbourne, Victoria, Australia

Zunyou Wu

wuzy@263.net

Affiliation Division of Health Education and Behavioral Intervention, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China

Jianping Yu

Affiliation Division of AIDS/STD, Xicheng District Center for Disease Control and Prevention, Beijing, China

Min Li

Affiliation Division of AIDS/STD, Xicheng District Center for Disease Control and Prevention, Beijing, China

Muhtar Ablimit

Affiliation Center for AIDS/STD Control and Prevention, Xingjiang Uyghur Autonomous Region Center for Disease Control and Prevention, Urumqi, China

Fan Li

Affiliation Center for AIDS/STD Control and Prevention, Xingjiang Uyghur Autonomous Region Center for Disease Control and Prevention, Urumqi, China

Katharine Poundstone

Affiliation Division of Health Education and Behavioral Intervention, 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

Wrote the paper: HZ KP. Analyzed the data: HZ KP. Performed the experiments: JY ML MA FL. Contributed reagents/materials/analysis tools: ZW. Conceived and designed the experiments: HZ ZW.