About the Authors

Marcel E. Curlin

cemarcel@u.washington.edu

Affiliations Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America, Department of Medicine, University of Washington, Seattle, Washington, United States of America

Meei-Li Huang

Affiliation Department of Medicine, University of Washington, Seattle, Washington, United States of America

Xiaoyan Lu

Affiliation Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Connie L. Celum

Affiliations Department of Medicine, University of Washington, Seattle, Washington, United States of America, Department of Epidemiology, University of Washington, Seattle, Washington, United States of America, Department of Global Health, University of Washington, Seattle, Washington, United States of America

Jorge Sanchez

Affiliation Asociación Civil Impacta Salud y Educación, Lima, Peru

Stacy Selke

Affiliation Department of Medicine, University of Washington, Seattle, Washington, United States of America

Jared M. Baeten

Affiliations Department of Medicine, University of Washington, Seattle, Washington, United States of America, Department of Global Health, University of Washington, Seattle, Washington, United States of America

Richard A. Zuckerman

Affiliation Division of Infectious Diseases, Dartmouth-Hitchcock Medical Center, Lebanon, New Hampshire, United States of America

Dean D. Erdman

Affiliation Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Lawrence Corey

Affiliations Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America, Department of Medicine, University of Washington, Seattle, Washington, United States of America, Department of Laboratory Medicine, University of Washington, Seattle, Washington, United States of America

Competing Interests

One author has received past research support from Glaxo-Smith Kline. The funders had no role in study design, data collection and analysis, decision to publish, or preparation of the manuscript. This funding does not alter our adherence to all of the PLoS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: MEC CC RZ DDE LC. Performed the experiments: MLH XL JS. Analyzed the data: MEC XL CC JS SS JB DDE. Wrote the paper: MEC CC JB RZ DDE LC.