KFF Health News Mar 6 2026 The ambitious liver doctor would go just about anywhere in his home state to give people the hepatitis B vaccine. Bill Cassidy offered jabs to thousands of inmates at Louisiana's maximum-security prison in the early 2000s. A decade before that, he set up vaccine clinics in middle schools, a model hailed nationally as a success. "He got that whole generation immunized in East Baton Rouge," said Holley Galland, a retired doctor who worked with Cassidy vaccinating