About the Authors

Ankur Gupta

Affiliation Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom

Robin Wood

Affiliation The Desmond Tutu HIV Centre, Institute for Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa

Richard Kaplan

Affiliation The Desmond Tutu HIV Centre, Institute for Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa

Linda-Gail Bekker

Affiliation The Desmond Tutu HIV Centre, Institute for Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa

Stephen D. Lawn

stevelawn@yahoo.co.uk

Affiliations Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene and Tropical Medicine, London, United Kingdom, The Desmond Tutu HIV Centre, Institute for Infectious Disease and Molecular Medicine, Faculty of Health Sciences, University of Cape Town, Cape Town, South Africa

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: SDL AG RW. Performed the experiments: SDL AG RK. Analyzed the data: AG SDL. Contributed reagents/materials/analysis tools: SDL RK LGB RW. Wrote the paper: AG SDL. Approved the final manuscript: AG RW RK LGB SDL.