Global health is where charity evaluators have done their most rigorous cost-effectiveness research. Four programs here — Against Malaria Foundation, Malaria Consortium's seasonal malaria chemoprevention, Helen Keller Intl's vitamin A supplementation and New Incentives — are GiveWell Top Charities, GiveWell's highest recommendation.
Funds long-lasting insecticide-treated bed nets for malaria-endemic countries, mainly in sub-Saharan Africa and Papua New Guinea, relying on partner organizations to distribute them, with 100% of public donations buying nets.
Delivers seasonal malaria chemoprevention — preventive antimalarial medicine given door to door by community distributors during the rainy-season peak — to young children in seven African countries, reaching 22.5 million children in 2024.
Supports government-run campaigns that give children aged 6 to 59 months a vitamin A capsule twice a year, mostly in sub-Saharan Africa, through funding, training, planning and monitoring — reaching 47 million children in 18 countries in the most recent year.
Increases routine childhood vaccination rates in Nigeria by providing small conditional cash transfers to families who bring their children for immunizations.
Funds surgical repair of obstetric fistula — a childbirth injury that leaves women incontinent — through 102 vetted hospitals and outreach partners in 36 countries across Africa and Asia, and says it funds more fistula surgeries than any other organization.
Trains community health workers — predominantly women — to deliver life-saving medicines, diagnoses, and health education directly to families' doorsteps, preventing the leading causes of child death.
A global eye care nonprofit that restores sight and prevents blindness in underserved communities across 20+ countries in Asia, Africa, and the Americas.