Flexner Flex·ner (flěks'nər), Simon. 1863-1946.
American microbiologist who isolated the bacillus of dysentery (1900), developed a serum for cerebrospinal meningitis (1907), and led the team that identified the cause of poliomyelitis.
educator who played a major role in the introduction of modern medical and science education to American colleges and universities.
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