About the Authors

Elin Solomonovna Gray

Affiliation AIDS Virus Research Unit, National Institute for Communicable Diseases, Johannesburg, South Africa

Tammy Meyers

Affiliation Harriet Shezi Clinic, University of the Witwatersrand, Johannesburg, South Africa

Glenda Gray

Affiliation Perinatal HIV Research Unit, University of the Witwatersrand, Johannesburg, South Africa

David Charles Montefiori

Affiliation Duke University Medical Centre, Durham, North Carolina, United States of America

Lynn Morris

To whom correspondence should be addressed. E-mail: lynnm@nicd.ac.za

Affiliation AIDS Virus Research Unit, National Institute for Communicable Diseases, Johannesburg, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

ESG and LM designed the study. ESG and LM analyzed the data. TM and GG enrolled patients. DM provided reagents and technical advice. ESG, TM, GG, DM, and LM contributed to writing the paper. ESG collected data and performed experiments for the study.