About the Authors

Christopher D. Pilcher

cpilcher@php.ucsf.edu

Affiliation HIV/AIDS Division, University of California San Francisco, San Francisco, California, United States of America

Brian Louie

Affiliation Public Health Laboratory, San Francisco Department of Public Health, San Francisco, California, United States of America

Shelley Facente

Affiliations HIV/AIDS Division, University of California San Francisco, San Francisco, California, United States of America, HIV Prevention Section, San Francisco Department of Public Health, San Francisco, California, United States of America

Sheila Keating

Affiliation Blood Systems Research Institute, San Francisco, California, United States of America

John Hackett Jr

Affiliation Abbott Diagnostics, Abbott Park, Illinois, United States of America

Ana Vallari

Affiliation Abbott Diagnostics, Abbott Park, Illinois, United States of America

Chris Hall

Affiliation Magnet Community Health Center, San Francisco, California, United States of America

Teri Dowling

Affiliation HIV Prevention Section, San Francisco Department of Public Health, San Francisco, California, United States of America

Michael P. Busch

Affiliation Blood Systems Research Institute, San Francisco, California, United States of America

Jeffrey D. Klausner

Affiliations HIV/AIDS Division, University of California San Francisco, San Francisco, California, United States of America, STD Prevention and Control Services Section, San Francisco Department of Public Health, San Francisco, California, United States of America

Frederick M. Hecht

Affiliation HIV/AIDS Division, University of California San Francisco, San Francisco, California, United States of America

Sally Liska

Affiliation Public Health Laboratory, San Francisco Department of Public Health, San Francisco, California, United States of America

Mark W. Pandori

Affiliation Public Health Laboratory, San Francisco Department of Public Health, San Francisco, California, United States of America

Competing Interests

The authors have read the journal's policy and have the following conflicts: Drs. Hackett and Vallari are employed by Abbott Diagnostics, which markets the ARCHITECT HIV 1/2 test, one of the several HIV assays evaluated in this study. 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: CDP BL JDK. Performed the experiments: JDK FMH CDP BL MWP SL AV JH MPB SK TD CH. Analyzed the data: CDP SF BL MWP. Contributed reagents/materials/analysis tools: JH. Wrote the paper: CDP BL SF SK MWP JH AV CH TD MPB SL JDK FMH.