The health wagon serves remote communities in the Appalachian mountains of south-west Virginia. It's the oldest mobile clinic in the USA, founded in 1980 by a catholic nun in the back of a VW Beetle. Today it is a thriving and innovative non-profit, with five mobile units and three stationary clinics. Nurse practitioners Dr Teresa Tyson and Dr Paula Hill Collins are at the helm. We join them and their team, providing no-cost medical, dental and vision care to one of the most vulnerable, medically underserved areas of the United States.