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  • Sir Alexander Fleming, FRSE, FRS, FRCS was a Scottish biologist, pharmacologist and botanist. He wrote many articles on bacteriology, immunology, and chemotherapy. His best-known discoveries are the enzyme lysozyme in 1923 and the antibiotic substance penicillin from the mould Penicillium notatum in 1928, for which he shared the Nobel Prize in Physiology or Medicine in 1945 with Howard Florey and Ernst Boris Chain. In 1999, Time magazine named Fleming one of the 100 Most Important People of the 20th Century, stating: Wikipedia

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  • An ingenuity in devising experiments, technical skill in implementing them, and uncanny powers of observation led to his two major discoveries: the enzyme lysozyme and the antibiotic penicillin

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