How to solve tough global health problems? Build community.

The leader of Grand Challenges shares how the 20-year-old initiative fuels the coolest science happening today.
Kedest Tesfagiorgis Deputy Director, Global Partnerships & Grand Challenges, Bill & Melinda Gates Foundation delivers opening remarks at Grand Challenges Annual Meeting 2019 at the United Nations Conference Centre in Addis Ababa, Ethiopia on October 28, 2019.
Kedest Tesfagiorgis, deputy director leading Grand Challenges, delivers the keynote at the Grand Challenges Annual Meeting in Addis Ababa, Ethiopia in October 2019. ©Gates Archive/Mulugeta Ayene

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