Ignaz Semmelweis: The Doctor Who Proved Handwashing Saves Lives

A doctor in Vienna proved that washing hands with chlorinated lime could slash maternal death rates — and his colleagues still fought him. In this episode, we unpack Ignaz Semmelweis, childbed fever, germ theory, and the stubborn resistance that delayed one of medicine’s simplest life-saving breakthroughs. Listen now to hear how a basic handwashing rule became a battle over science, pride, and patient safety.

Ignaz Semmelweis was a 19th-century doctor who noticed a deadly pattern in a Vienna maternity ward and proved that handwashing with chlorinated lime could dramatically cut maternal mortality from puerperal fever. This episode follows the evidence, the backlash, and the legacy of Semmelweis’s hand hygiene breakthrough — a story that still shapes infection control today.

• Why the Vienna maternity wards were so different
• How Semmelweis linked doctors’ hands to childbed fever
• The chlorinated lime handwashing protocol
• Why colleagues rejected the evidence
• How Semmelweis’s ideas became modern hospital hand hygiene

Chapter labels: Vienna’s deadly clue; The autopsy-to-delivery-room problem; Chlorinated lime and the mortality drop; Resistance, ridicule, and exile; Semmelweis’s legacy in infection prevention

Related resources and links: [Episode page] | [WHO hand hygiene guidance] | [Science History Institute: Ignaz Semmelweis] | [Learn more about puerperal fever]

If this episode changed how you think about handwashing, share it with someone who works in healthcare — or anyone who still needs a reminder that the basics save lives.

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