Childhood Trauma Instills Resiliency in Guinea Worm Warrior Share January 22, 2021 Before the COVID-19 pandemic prompted a halt to large gatherings, Dr. Hubert Zirimwabagabo, in blue shirt, teaches a group of women in Chad about Guinea worm disease and what they can do to prevent it. (Photo: The Carter Center/J. Hahn) He could have taken his advanced degrees from Boston and Fordham universities and found a comfortable, high-paying job in the United States. But Dr. Hubert Zirimwabagabo had a different goal for the early years of his career. The Rwanda-born physician chose instead to devote his talents to public health. As the Carter Center’s country representative for Chad, in Africa’s semi-arid Sahel region, he leads a team of scientists and village volunteers battling Guinea worm, a disease of poverty, in one of its last strongholds.