Nobel Prize in Physiology or Medicine 1930

Karl Landsteiner

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Prize share: 1/1

The Nobel Prize in Physiology or Medicine 1930 was awarded to Karl Landsteiner "for his discovery of human blood groups"

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MLA style: The Nobel Prize in Physiology or Medicine 1930. NobelPrize.org. Nobel Prize Outreach 2026. Wed. 15 Jul 2026. <https://www.nobelprize.org/prizes/medicine/1930/summary/>

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Blood typing game

What happens if you get a blood transfusion with the wrong blood type? Learn more about blood groups in the blood typing game! The game helps you understand how blood groups work.

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Nobel Prize in Physiology or Medicine 1930

Finding the key to safe blood transfusions

Today, we take it for granted that people have different blood types. But not so long ago, it was believed that all blood was the same – a fatal misunderstanding. 
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Close up of A positive blood in bag.

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