The Nobel Prize in Physiology or Medicine 1945

Sir Alexander Fleming

Photo from the Nobel Foundation archive.

Prize share: 1/3

Ernst Boris Chain

Photo from the Nobel Foundation archive.

Prize share: 1/3

Sir Howard Walter Florey

Photo from the Nobel Foundation archive.

Prize share: 1/3

The Nobel Prize in Physiology or Medicine 1945 was awarded jointly to Sir Alexander Fleming, Ernst Boris Chain and Sir Howard Walter Florey "for the discovery of penicillin and its curative effect in various infectious diseases."

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