A Zambian man holds up his HIV negative test results.
Children receive the oral polio vaccine from a vaccination team going house to house in Kano, Nigeria.
A premature baby is cared for in the pediatric ward at a hospital in Addis Ababa, Ethiopia.
This Tanzanian sweet potato farmer teaches other farmers in the region about soil irrigation, increasing crop yields, and how to sell surplus crops at the market.
Seventh and eighth grade students build and play with robots at McLane Middle School in Brandon, Florida.
Leading organizations will join Melinda Gates and thousands of advocates from around the world for the largest global meeting of the decade on the health and well-being of women and girls.
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Bill & Melinda Gates Foundation
"I fundamentally believe in the power of young people today to connect deeply to others – both here and far away – and in doing so, be motivated to make the world a better place."
Saying "humanity in the abstract will never inspire you in the same way as human beings you meet," Melinda Gates urged Duke University's graduates Sunday to use new technology to connect with others, including people in the developing world whose lives Americans can now touch in a more personal way. Gates recalled attending Duke basketball games and spending long nights writing computer code as a student, long before she became co-chair of the Bill & Melinda Gates Foundation, the world's largest transparently operated private foundation. Read more here: http://today.duke.edu/2013/05/commence2013.