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Ignaz Semmelweis And The “Semmelweis Reflex”

Black and white portrait of Ignaz Semmelweis, the 19th-century Hungarian physician who discovered that handwashing prevents the spread of infection, set against a background of illustrated microbes and bacteria.

The true story of Ignaz Semmelweis, the man who discovered handwashing saves lives in 1847, was ignored by the world, and changed medicine forever.

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7 March 2026