Absenteeism is a chronic problem in schools in Kenya, and deworming reduced it by 25 percent. In fact, every child treated spent an extra two weeks in school, and every one hundred dollars spent on the program provided a total of ten years of additional school attendance among all students. Enabling a child to spend an extra day in school therefore cost just five cents. It wasn’t merely that deworming children “worked” at getting children into school. It worked incredibly well.
