S2E30 Do No Harm: The Birth of Infection Prevention

For much of history, entering a hospital could be one of the most dangerous decisions a person could make. Patients survived injuries and operations only to die from infections acquired in the very places meant to heal them. In this final episode of our Turning Points in Infectious Disease series, we explore the revolution that transformed hospitals from centers of disease transmission into institutions designed to prevent infection. Follow the stories of Ignaz Semmelweis, Louis Pasteur, Joseph Lister, and Florence Nightingale as medicine gradually uncovered the invisible world of microbes and reshaped healthcare around one revolutionary idea: the safest infection is the one that never happens. We'll also explore why healthcare-associated infections still occur today and what this history teaches us about the ongoing challenge of translating scientific evidence into everyday practice. Check out the companion blog post at the website for full, annotated citations , historical images, and more. And subscribe to the free weekly newsletter, Field Notes, to continue the conversation, get updates on outbreaks and the infectious disease signals Heather is paying attention to, and get a peek behind the scenes.