About the Authors

Colleen F. Hanrahan

colleen_hanrahan@unc.edu

Affiliations Department of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, Maryland, United States of America, Department of Epidemiology, UNC Gilling School of Global Public Health, Chapel Hill, North Carolina, United States of America

Susan E. Dorman

Affiliation Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America

Linda Erasmus

Affiliation National TB Reference Laboratory, National Health Laboratory Services, Johannesburg, South Africa

Hendrik Koornhof

Affiliation National TB Reference Laboratory, National Health Laboratory Services, Johannesburg, South Africa

Gerrit Coetzee

Affiliation National TB Reference Laboratory, National Health Laboratory Services, Johannesburg, South Africa

Jonathan E. Golub

Affiliations Department of Epidemiology, UNC Gilling School of Global Public Health, Chapel Hill, North Carolina, United States of America, Department of Medicine, Johns Hopkins School of Medicine, Baltimore, Maryland, United States of America

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: CFH JEG SED GC LE HK. Performed the experiments: CFH. Analyzed the data: CFH. Wrote the paper: CFH SD JEG.