Scaling High-Impact Interventions

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Supporting Greater Self-Reliance

Strengthening Urban Health Systems

Expanding Access to Modern Contraception

The Challenge Initiative

Empowering Local Governments

Led by the Bill & Melinda Gates Institute for Population and Reproductive Health at Johns Hopkins Bloomberg School of Public Health, The Challenge Initiative is a “business unusual” platform that empowers local governments to rapidly and sustainably scale best-practice health interventions to benefit urban poor communities.

Our Regional Accelerator Hubs

Our Partners

Learn more. Get involved. Meet the challenge.