About the Authors

Nivesh H. Sewlall

nivesh.sewlall@wits.ac.za

Affiliations Internal Medicine, Morningside MediClinic, Johannesburg, South Africa, Department of Medicine, University of the Witwatersrand, Johannesburg, South Africa

Guy Richards

Affiliation Department of Medicine, University of the Witwatersrand, Johannesburg, South Africa

Adriano Duse

Affiliation Department of Medicine, University of the Witwatersrand, Johannesburg, South Africa

Robert Swanepoel

Affiliation Department of Medicine, University of Pretoria, Pretoria, South Africa

Janusz Paweska

Affiliation National Institute of Communicable Disease, Sandringham, South Africa

Lucille Blumberg

Affiliation National Institute of Communicable Disease, Sandringham, South Africa

Thu Ha Dinh

Affiliation Centers for Disease control and Prevention, Atlanta, Georgia, United States of America

Daniel Bausch

Affiliation Tulane School of Public Health and Tropical Medicine, New Orleans, Louisiana, United States of America

Competing Interests

The authors declare that no competing interests exist.

Author Contributions

Conceived and designed the experiments: NHS AD GR RS JP LB THD DB. Performed the experiments: NHS AD GR RS JP LB THD DB. Analyzed the data: NHS AD GR RS JP LB THD DB. Contributed reagents/materials/analysis tools: NHS AD GR RS JP LB THD DB. Wrote the paper: NHS AD GR RS JP LB THD DB.