About the Authors

Li Ye

Contributed equally to this work with: Li Ye, Suosu Wei

Affiliation Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China

Suosu Wei

Contributed equally to this work with: Li Ye, Suosu Wei

Affiliation The People's Hospital of Guangxi Zhuang Autonomous Region, Nanning, Guangxi, China

Yunfeng Zou

Affiliation Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China

Xiaobo Yang

Affiliation Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China

Abu S. Abdullah

Affiliations Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China, Department of Medicine, Boston Medical Center, Boston University School of Medicine, Boston, Massachusetts, United Staes of America

Xiaoni Zhong

Affiliation School of Public Health, Chongqing Medical University, Chongqing, China

Yuhua Ruan

Affiliation State Key Laboratory for Infectious Disease Prevention and Control, Chinese Center for Disease Control and Prevention, Beijing, China

Xinqin Lin

Affiliation Nanning Center for Disease Control and Prevention, Nanning, Guangxi, China

Mingqiang Li

Affiliation Liuzhou Center for Disease Control and Prevention, Liuzhou, Guangxi, China

Deren Wu

Affiliation Beihai Center for Disease Control and Prevention, Beihai, Guangxi, China

Junjun Jiang

Affiliation Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China

Peiyan Xie

Affiliation Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China

Jiegang Huang

Affiliation Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China

Bingyu Liang

Affiliation Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China

Bo Zhou

Affiliation Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China

Jinming Su

Affiliation Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China

Hao Liang

haolphd@163.com (HL); ahuang1964@yahoo.com.cn (AH)

Affiliation Guangxi Key Laboratory of AIDS Prevention and Treatment, School of Public Health, Guangxi Medical University, Nanning, Guangxi, China

Ailong Huang

haolphd@163.com (HL); ahuang1964@yahoo.com.cn (AH)

Affiliation School of Public Health, Chongqing Medical University, Chongqing, China

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: HL ALH LY SSW YHR. Performed the experiments: LY SSW YFZ XQL MQL DRW JJJ BYL BZ. Analyzed the data: XBY XNZ PYX JGH JMS. Wrote the paper: LY SSW ASA HL ALH. Quality control during the survey: XQL MQL DRW.