Arab Bank for Economic Development in Africa (BADEA) Bill & Melinda Gates Foundation Christoffel Blindenmission Foreign, Commonwealth & Development Office Federal Ministry of Health of Germany GlaxoSmithKline International Trachoma Initiative Johnson & Johnson Korea International Cooperation Agency Kuwait Fund for Arab Economic Development Merck Sharp & Dohme-Chibret Merck Group OPEC Fund for International Development Pfizer Qatar Fund for Development Reaching the Last Mile Fund Sightsavers The Carter Center The END Fund The Swiss Confederation The Task Force for Global Health United States Agency for International Development