About the Authors

Oliver Laeyendecker

Contributed equally to this work with: Oliver Laeyendecker, Estelle Piwowar-Manning

Affiliations Laboratory of Immunoregulation, NIAID, NIH, Baltimore, Maryland, United States of America, Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America

Estelle Piwowar-Manning

Contributed equally to this work with: Oliver Laeyendecker, Estelle Piwowar-Manning

Affiliation Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America

Agnes Fiamma

Affiliation Program in Global Health, University of California Los Angeles, Los Angeles, California, United States of America

Michal Kulich

Affiliation Department of Probability and Statistics, Faculty of Mathematics and Physics, Charles University in Prague, Prague, Czech Republic

Deborah Donnell

Affiliations Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America, Department of Global Health, University of Washington, Seattle, Washington, United States of America

Deb Bassuk

Affiliation Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America

Caroline E. Mullis

Current address: Georgetown University, Washington, D.C., United States of America

Affiliation Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America

Craig Chin

Affiliation Vaccine and Infectious Disease Division, Fred Hutchinson Cancer Research Center, Seattle, Washington, United States of America

Priscilla Swanson

Affiliation Infectious Diseases Research, Abbott Diagnostics, Abbott Park, Illinois, United States of America

John Hackett Jr

Affiliation Infectious Diseases Research, Abbott Diagnostics, Abbott Park, Illinois, United States of America

William Clarke

Affiliation Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America

Mark Marzinke

Affiliation Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America

Greg Szekeres

Affiliation Program in Global Health, University of California Los Angeles, Los Angeles, California, United States of America

Glenda Gray

Affiliation Perinatal HIV Research Unit, Chris Hani Baragwanath Hospital/University of the Witwatersrand, Johannesburg, South Africa

Linda Richter

Affiliation Human Sciences Research Council, Durban, South Africa

Michel W. Alexandre

Affiliation Department of Microbiology and Immunology, Muhimbili University of Health and Allied Sciences, Dar es Salaam, Tanzania

Suwat Chariyalertsak

Affiliation Research Institute for Health Sciences, Chiang Mai University, Chiang Mai, Thailand

Alfred Chingono

Affiliation Department of Psychiatry, School of Medicine, University of Zimbabwe, Harare, Zimbabwe

David D. Celentano

Affiliation Department of Epidemiology, Johns Hopkins University Bloomberg School of Public Health, Baltimore, Maryland, United States of America

Stephen F. Morin

Affiliation Department of Medicine, University of California San Francisco, San Francisco, California, United States of America

Michael Sweat

Affiliation Department of Psychiatry and Behavioral Sciences, The Medical University of South Carolina, Charleston, South Carolina, United States of America

Thomas Coates

Affiliation Program in Global Health, University of California Los Angeles, Los Angeles, California, United States of America

Susan H. Eshleman

seshlem@jhmi.edu

Affiliation Department of Pathology, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America

Competing Interests

The authors declare that they do not have a commercial or other association that might pose a conflict of interest, with the following exceptions: PS and JH are employees and stockholders of Abbott Laboratories, manufacturer of the HIV Combo assay. Abbott Laboratories provided HIV Combo assay testing for this study. Dr. SHE received an honorarium in 2009 for an invited presentation at a symposium sponsored by Abbott Laboratories and has collaborated with investigators at Abbott Laboratories on research projects. 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: OL EPM MK DD DB WC MS TC SHE. Performed the experiments: CEM CC. Analyzed the data: OL EPM AF MK DD DB CEM CC PS JH WC MM. Contributed reagents/materials/analysis tools: GS GG LR SC AC DC SFM. Wrote the paper: OL EPM AF MK DD TC SHE. Statistical work: MK DD DB CC. Provided intellectual input into the manuscript: OL EPM AF MK DD DB CEM CC PS JH WC MM GS GG LR MA SC AC DC SFM MS TC SHE.