Alexander Fleming
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Sir Alexander Fleming was a Scottish physician and microbiologist. He shared the 1945 Nobel Prize in Physiology or Medicine with Howard Florey and Ernst Chain "for the discovery of penicillin and its
Fleming in his laboratory, 1943
An advertisement advertising penicillin's "miracle cure"
A commemorative plaque marking Fleming's discovery of penicillin at St Mary's Hospital, London
Fleming in his laboratory in 1943
Penicillin
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Penicillins are a group of β-lactam antibiotics originally obtained from Penicillium moulds, principally P. chrysogenum and P. rubens. Eight species of Penicillium, in the section Chrysogena, produce
Alexander Fleming
…Scottish physician and microbiologist. He shared the 1945 Nobel Prize in Physiology or Medicine with Howard Florey and Ernst Chain "for the discovery of penicillin and its curative effect in various infectious diseases". This was the first antibiotic substance discovered. His discovery in 1928 of what was later…
Sample of penicillium mould presented by Alexander Fleming to Douglas Macleod, 1935
Howard Florey (pictured), Alexander Fleming and Ernst Chain shared a Nobel Prize in Physiology or Medicine in 1945 for their work on penicillin.
A lab technician spraying penicillin mould into flasks of corn steep liquor, England, 1943
A World War II-era poster from a construction site for a penicillin factory. A military grave emphasizes the site's importance, as penicillin was urgently needed in wartime.