About the Authors

Victor Akelo

Affiliations Kenya Medical Research Institute, Kisumu, Kenya, Division of HIV/AIDS Prevention, U.S. Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Sonali Girde

Affiliations Division of HIV/AIDS Prevention, U.S. Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America, ICF International, Atlanta, Georgia, United States of America

Craig B. Borkowf

Affiliation Division of HIV/AIDS Prevention, U.S. Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Frank Angira

Affiliation Kenya Medical Research Institute, Kisumu, Kenya

Kevin Achola

Affiliation Kenya Medical Research Institute, Kisumu, Kenya

Richard Lando

Affiliation Kenya Medical Research Institute, Kisumu, Kenya

Lisa A. Mills

Affiliation U.S. Centers for Disease Control and Prevention, HIV Research Branch, Kisumu, Kenya

Timothy K. Thomas

Affiliation U.S. Centers for Disease Control and Prevention, HIV Research Branch, Kisumu, Kenya

Shirley Lee Lecher

gux5@cdc.gov

Affiliation Division of HIV/AIDS Prevention, U.S. Centers for Disease Control and Prevention, Atlanta, Georgia, United States of America

Competing Interests

Co-author Sonali Girde is employed as a contractor for the Centers for Disease Control and Prevention through ICF International, which provides informatics support to the Division of HIV/AIDS Prevention. Any affiliation to ICF International did not influence the overall design and implementation of the study and does not alter the authors' adherence to all the PLOS ONE policies on sharing data and materials.

Author Contributions

Conceived and designed the experiments: VA SL TT. Performed the experiments: VA SL. Analyzed the data: CBB SG. Contributed reagents/materials/analysis tools: SG RL CBB. Wrote the paper: VA SL. Data collection and manuscript planning: FA KA LM. Contributed to the writing of the manuscript: CBB.