Grady Memorial Hospital, in Atlanta, deployed the state-of-the-art mobile medical unit in an effort to free up hospital emergency department space for acute-care patients as flu season heats up.

Mike King, author of A Spirit of Charity, spoke with America’s Essential Hospitals about reducing health disparities and changing public perceptions.

Mike King, a reporter for nearly 40 years, profiles three members of America’s Essential Hospitals — Grady Memorial Hospital in Atlanta, Parkland Memorial Hospital in Dallas, the John H. Stroger Hospital of Cook County in Chicago — and other public hospitals across the country.