Host: Codyanne Murtaugh Guest: Mary Beth Pfeiffer With cases being reported in every state and across 80 countries, Lyme disease has become one of the fastest growing vector-borne illnesses in the world. But have you ever wondered how this global health threat came to be? That’s what journalist Mary Beth Pfeiffer investigates in her book, Lyme: The First Epidemic of Climate Change, and with the ReachMD team.