@BillGates: Twenty years ago, I thought of #GrandChallenges as a Gates Foundation initiative. Because of all of the innovators and broader scientific community involved, it has become a global movement. https://t.co/I9rWMg5bTa

http://twitter.com/BillGates

Twenty years ago, I thought of #GrandChallenges as a Gates Foundation initiative. Because of all of the innovators and broader scientific community involved, it has become a global movement. https://t.co/I9rWMg5bTa

— Bill Gates (@BillGates) Oct 25, 2022