Science · Discoveries that changed the world

The discovery of penicillin

A forgotten dish, a patch of mold, and medicine changes forever.

Fleming, 19283 min read5 partsQuiz of 9 questions
Read in the app Available in 30 languages
Ministry of Information Photo Division Photographer · Penicillin Past, Present and Future- the Development and Production of Penicillin, England, 1944 D17802 · Public domain · Wikimedia Commons
Part 1 of 5 · freeIntroduction

Before antibiotics, a simple infection could kill. A cut, a case of pneumonia, a battlefield wound: the body often had to fight alone.

In 1928, the Scottish doctor Alexander Fleming stumbled on a substance that could kill bacteria. It would be called penicillin. But turning it into a real medicine took years more.

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  1. 2A forgotten dish
  2. 3Oxford turns the idea into a cure
  3. 4Making it by the ton
  4. 5The shadow of resistance
Open-book quiz9 questions whose answers are in the text.
Glossary7 terms explained in a tap.
30 languagesThe same course, from French to Japanese.

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