About the Authors

Ron M. Kagan

Ron.M.Kagan@questdiagnostics.com

Affiliation Department of Infectious Diseases, Quest Diagnostics Nichols Institute, San Juan Capistrano, California, United States of America

Erik P. Johnson

Affiliation Department of Infectious Diseases, Quest Diagnostics Nichols Institute, San Juan Capistrano, California, United States of America

Martin Siaw

Affiliation Department of Infectious Diseases, Quest Diagnostics Nichols Institute, San Juan Capistrano, California, United States of America

Pinaki Biswas

Affiliation Pfizer, Collegeville, Pennsylvania, United States of America

Douglass S. Chapman

Affiliation Pfizer, New York, New York, United States of America

Zhaohui Su

Affiliation Outcome Sciences, Cambridge, Massachusetts, United States of America

Jamie L. Platt

Affiliation Department of Infectious Diseases, Quest Diagnostics Nichols Institute, San Juan Capistrano, California, United States of America

Rick L. Pesano

Affiliation Department of Infectious Diseases, Quest Diagnostics Nichols Institute, San Juan Capistrano, California, United States of America

Competing Interests

The authors have read the journal's policy and have the following conflicts: Authors RMK, EPJ, MS, JLP and RLP are employed by Quest Diagnostics, a diagnostic testing company that offers diagnostic tests for HIV. Authors PB and DSC are employed by a pharmaceutical company, Pfizer Inc, that sells antiretroviral drugs. ZS was employed as a biostatistics consultant for this project. 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: RMK ZS DSC RLP. Performed the experiments: EPJ MS. Analyzed the data: RMK PB DSC ZS. Contributed reagents/materials/analysis tools: RMK JLP RLP. Wrote the paper: RMK.