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Agent of Change

Winnie Byanyima is a vaccine advocate fighting for equality in distribution. She previously worked as an aeronautical engineer in Uganda and joined the guerilla fight to restore democracy and human rights. She now serves as head of UNAIDS.

Vince grew up in the Chicago suburb of Berwyn. He has enjoyed a long career in science, starting in chemistry and physics and moving through plant physiology, ecology, remote sensing, and agronomy.