Oregon Health & Science University, Oregon Health & Science University, Western University of Health Sciences, University of California, San Francisco (UCSF), Oregon Health & Science University, Oregon Health & Science University, Oregon Health & Science University, University of California, San Francisco (UCSF) - F. I. Proctor Foundation, University of California, San Francisco (UCSF), The Carter Center, University of Gondar, Addis Ababa University, Addis Ababa University, The Carter Center, Universidad Peruana Cayetano Heredia, University of California, San Francisco (UCSF), Pan American Health Organization and Oregon Health & Science University

Oregon Health & Science University, George Washington University, University of California, San Francisco (UCSF), Addis Ababa University, The Carter Center, Addis Ababa University, Addis Ababa University, Addis Ababa University, University of Gondar, University of Gondar, University of Gondar, University of Gondar, University of Gondar, University of Gondar, University of Gondar, University of Gondar, University of Gondar, University of Gondar, University of California, San Francisco (UCSF) - F. I. Proctor Foundation, University of California, San Francisco (UCSF) and Oregon Health & Science University

Task Force for Global Health Inc. - International Trachoma Initiative, The Carter Center, Ministry of Health, Benin, Ministry of Health, Burundi, Government of Cameroon - Ministry of Public Health Cameroon, Ministry of Health and Social Protection of Colombia, Ministère de la Santé et de la Population - Programme National de Lutte contre l'Onchocercose, Ministry of Health, Democratic Republic of the Congo, Federal Ministry of Health, Amhara Regional Health Bureau, Ministry of Health, Gambia, Ministry of Health, Guatemala, Ministry of Health, Guatemala, Ministry of Health and Public Hygiene (Guinea), Ministry of Health, Guinea Bissau, Government of Kenya - Kenya Ministry of Health, Ministry of Health, Kiribati, Ministry of Health (Malawi), Ministry of Health, Mali, Ministry of Health, Mauritania, Ministry of Health, Morocco, Republic of Mozambique - Ministry of Health, MInistry of Health, Nauru, Nepal Netra Jyoti Sangh, Ministry of Health, Nepal, Ministry of Health, Niger, Ministry of Health, Nigeria, Ministry of Health, Senegal, Ministry of Health and Medical Services - Solomon Islands, Ministry of Health, South Sudan - Neglected Tropical Diseases Unit, Ministry of Health, Sudan, Ministry of Health, Tanzania, Ministry of Health and Social Welfare, Tanzania, affiliation not provided to SSRN, Ministry of Health, Vanuatu, Ministry of Health of Vietnam, Ministry of Health, Yemen, Ministry of Health Zambia, Ministry of Health, Zanzibar, Ministry of Health and Child Care, Task Force for Global Health Inc., Task Force for Global Health Inc., Task Force for Global Health Inc., Task Force for Global Health Inc. - International Trachoma Initiative, Task Force for Global Health Inc. and RTI International

London School of Hygiene & Tropical Medicine, London School of Hygiene & Tropical Medicine, Eyu-Ethiopia, Amhara Regional Health Bureau, Ministry of Health (Addis Ababa) - Disease Prevention and Control Directorate, The Carter Center, Task Force for Global Health Inc., World Health Organization (WHO) - Regional Office for Africa, Children’s Investment Fund Foundation, London School of Hygiene & Tropical Medicine - Department of Clinical Research, London School of Hygiene & Tropical Medicine and London School of Hygiene & Tropical Medicine