About the Authors

Elizabeth L Corbett, Yin Bun Cheung, Peter Godfrey-Faussett, Richard Hayes, Gavin Churchyard, Anthony Butterworth
London School of Hygiene and Tropical Medicine, London, United Kingdom

Elizabeth L Corbett, Tsitsi Bandason, Anthony Butterworth, Peter Mason
Biomedical Research and Training Institute, Harare, Zimbabwe

Shungu Munyati
National Institute of Health Research, Harare, Zimbabwe

Peter Mason
Department of Medical Laboratory Sciences, University of Zimbabwe, Harare, Zimbabwe

Corresponding Author

elc1@mweb.co.zw

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

ELC, SM, RH, GC, and AB designed the study. ELC, TB, YBC, SM, PGF, RH, and AB analyzed the data. ELC, TB, YBC, SM, PGF, RH, GC, AB, and PM contributed to writing the paper. PM was responsible for all of the laboratory data and for ethical approval and monitoring of ethical issues regarding patients.