About the Authors

Kavindhran Velen

Affiliation The Aurum Institute, Johannesburg, South Africa

James J. Lewis

Affiliations The Aurum Institute, Johannesburg, South Africa, London School of Hygiene and Tropical Medicine, London, United Kingdom

Salome Charalambous

Affiliation The Aurum Institute, Johannesburg, South Africa

Alison D. Grant

Affiliation London School of Hygiene and Tropical Medicine, London, United Kingdom

Gavin J. Churchyard

Affiliations The Aurum Institute, Johannesburg, South Africa, London School of Hygiene and Tropical Medicine, London, United Kingdom

Christopher J. Hoffmann

choffmann@auruminstitute.org

Affiliations The Aurum Institute, Johannesburg, South Africa, Division of Infectious Diseases, Johns Hopkins University School of Medicine, Baltimore, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exit.

Author Contributions

Conceived and designed the experiments: CJH SC GJC. Analyzed the data: CJH JJL KV ADG. Wrote the paper: CJH KV JJL SC ADG GJC.