About the Authors

Sarah E. Burr

Sarah.Burr@lshtm.ac.uk

Affiliations Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom, Disease Control and Elimination Theme, Medical Research Council Unit, Fajara, The Gambia

Ansumana Sillah

Affiliation National Eye Health Programme, Ministry of Health and Social Welfare, Kanifing, The Gambia

Anselme S. Sanou

Affiliations Disease Control and Elimination Theme, Medical Research Council Unit, Fajara, The Gambia, West Africa Health Organization, Bobo-Dioulasso, Burkina Faso

Anita C. Wadagni

Affiliations Disease Control and Elimination Theme, Medical Research Council Unit, Fajara, The Gambia, West Africa Health Organization, Bobo-Dioulasso, Burkina Faso

John Hart

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

Emma M. Harding-Esch

Affiliations Department of Clinical Research, London School of Hygiene and Tropical Medicine, London, United Kingdom, HIV/STI Department, Public Health England, London, United Kingdom

Sarjo Kanyi

Affiliation National Eye Health Programme, Ministry of Health and Social Welfare, Kanifing, The Gambia

Robin L. Bailey

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: AS RLB. Performed the experiments: SEB AS ASS ACW JH EMHE SK. Analyzed the data: SEB ASS. Wrote the paper: SEB AS EMHE RLB.