About the Authors

Hao Zhu

Affiliations Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, North Carolina, United States of America, National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China

Sonia Napravnik

Affiliations Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, North Carolina, United States of America, Division of Infectious Diseases, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, United States of America

Joseph Eron

Affiliations Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, North Carolina, United States of America, Division of Infectious Diseases, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, United States of America

Stephen Cole

Affiliation Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, North Carolina, United States of America

Ye Ma

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

David Wohl

Affiliation Division of Infectious Diseases, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, United States of America

Zhihui Dou

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

Yao Zhang

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

Zhongfu Liu

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

Decai Zhao

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

Myron Cohen

Contributed equally to this work with: Myron Cohen, Fujie Zhang

myron_cohen@med.unc.edu (MC); zhang.fujie.t@gmail.com (FZ)

Affiliations Department of Epidemiology, Gillings School of Global Public Health, University of North Carolina at Chapel Hill, North Carolina, United States of America, Division of Infectious Diseases, School of Medicine, University of North Carolina at Chapel Hill, North Carolina, United States of America

Fujie Zhang

Contributed equally to this work with: Myron Cohen, Fujie Zhang

myron_cohen@med.unc.edu (MC); zhang.fujie.t@gmail.com (FZ)

Affiliations National Center for AIDS/STD Control and Prevention, Chinese Center for Disease Control and Prevention, Beijing, China, Beijing Ditan Hospital Capital Medical University, Beijing, China

Competing Interests

SN has received grant support from Pfizer, Bristol-Myers Squibb, and Merck. JE has received consulting fees from Tibotec, Bristol-Myers Squibb, Merck, GlaxoSmithKline, ViiV and Pfizer, and grant support from GlaxoSmithKline, Merck, Pfizer, Bristol-Myers Squibb, ViiV and Boehringer-Ingelheim. This does not alter the authors' adherence to all the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: ZH SN SRC FZ MSC. Analyzed the data: HZ. Wrote the paper: HZ SN. Critically reviewed the manuscript:JE SRC YM DW ZD YZ ZL DZ MSC FZ Approved the final version: JE SRC YM DW ZD YZ ZL DZ MSC FZ.