Dr. Ayo Ajayi is director of the Africa Team at the Bill and Melinda Gates Foundation, leading the foundation’s work on policy, advocacy, and government relations across the continent, as well as the foundation’s offices in Ethiopia, South Africa, and Nigeria. Dr. Ajayi joined the foundation in 2014 from PATH, where he served as Vice President for International Development. Before joining PATH, Dr. Ajayi served as regional director for sub-Saharan Africa for the Population Council for 16 years, leading the establishment of the organization’s presence and programmatic work in reproductive health, HIV/AIDS, social science and operations research, and institutional capacity building in Burkina Faso, Ethiopia, Ghana, Nigeria, and South Africa.