An Alabama native, Flowers has been awarded a MacArthur fellowship for her work on behalf of rural Americans living without proper sewage treatment. She says the hookworm study was a "smoking gun," that highlighted the sanitation and environmental problems the rural poor face.
As head of New York City's correctional health services, Dr. Homer Venters spent nine years overseeing the care of thousands of inmates in the jails on Rikers Island. Though he left Rikers in 2017, what he witnessed on the job has stayed with him.
Dr. Mona Hanna-Attisha exposed the lead high lead levels in Flint, Michigan's tap water, using the medical records of children with the levels of lead in their blood. The state tried to discredit her research. She persisted.
Many people who live close to gas drilling sites complain of serious illnesses. But there are few concrete data to help explain why they're getting sick. Investigative reporter Abrahm Lustgarten says weak industry regulations also make it hard to establish a clear connection between gas drilling and health effects.