About the Authors

Deborah Watson-Jones

Deborah.Watson-Jones@lshtm.ac.uk

Affiliations Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom, Mwanza Intervention Trials Unit, National Institute for Medical Research, Mwanza, Tanzania

Rebecca Balira

Affiliation Department of Sexual and Reproductive Health, National Institute for Medical Research, Mwanza, Tanzania

David A. Ross

Affiliation MRC Tropical Epidemiology Group, Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom

Helen A. Weiss

Affiliation MRC Tropical Epidemiology Group, Department of Infectious Disease Epidemiology, London School of Hygiene and Tropical Medicine, London, United Kingdom

David Mabey

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

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: DWJ RB DR HW DM. Performed the experiments: DWJ RB. Analyzed the data: DWJ RB HW. Wrote the paper: DWJ RB DR HW DM.