About the Authors

Jennifer L. Smith

jennifer.smith@ucsf.edu

Affiliations Department of Disease Control, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom, Global Health Group, University of California San Francisco, San Francisco, California, United States of America

Selvaraj Sivasubramaniam

Affiliation Medical Statistics Team, Division of Applied Health Sciences, University of Aberdeen, United Kingdom

Mansur M. Rabiu

Affiliation Prevention of Blindness Union, Riyadh, Saudi Arabia

Fatima Kyari

Affiliations Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom, College of Health Sciences of University of Abuja, Abuja, Nigeria

Anthony W. Solomon

Affiliation Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom

Clare Gilbert

Affiliation Department of Clinical Research, Faculty of Infectious and Tropical Diseases, London School of Hygiene & Tropical Medicine, London, United Kingdom

Competing Interests

The authors have declared that no competing interests exist.

Author Contributions

Conceived and designed the experiments: JLS AWS CG. Performed the experiments: JLS. Analyzed the data: JLS. Contributed reagents/materials/analysis tools: SS FK MMR. Wrote the paper: JLS CG AWS.