Parasitic worms date back thousands of years, causing diseases that limit human potential. But today, effective treatment against them requires just a few pills, taken once or twice a year. With 1.7 billion people at risk of infection, Ellen Agler and her team at the END Fund are imagining a world without disease caused by worms. Learn about how they're seeking to lower treatment costs, amplify prevention, support governments and nurture local leadership. This ambitious plan is a part of The Audacious Project, TED's initiative to inspire and fund global change. (Voiced by Ama Adi-Dako)