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Thomas Francis junior (* 15. Juli 1900 in Gas City, Indiana; † 1. Oktober 1969 in Ann Arbor (Michigan)) war ein US-amerikanischer Arzt, Virologe und Epidemiologe. Francis isolierte als erster Amerikaner das Grippevirus.
Thomas Francis Jr. (July 15, 1900 – October 1, 1969) was an American physician, virologist, and epidemiologist who guided the discovery and development of the polio vaccine being worked on by his student Jonas Salk.
Thomas Francis, Jr. (born July 15, 1900, Gas City, Ind., U.S.—died Oct. 1, 1969, Ann Arbor, Mich.) was an American microbiologist and epidemiologist who isolated the viruses responsible for influenza A (1934) and influenza B (1940) and developed a polyvalent vaccine effective against both strains.
- The Editors of Encyclopaedia Britannica
Thomas Francis junior (* 15. Juli 1900 i n Gas City , Indiana ; † 1. Oktober 1969 i n Ann Arbor (Michigan) ) w ar ein US-amerikanischer Arzt, Virologe u nd Epidemiologe .
It was April 12, 1955, and Dr. Thomas Francis Jr., director of the Poliomyelitis Vaccine Evaluation Center at the University of Michigan School of Public Health, was announcing to the world that the vaccine, developed by his former student Jonas Salk, was protective of paralytic polio.
13. März 2023 · When Dr Thomas Francis Jr said those famous words in 1955 – “the vaccine is safe, effective and potent” – polio still killed and paralysed millions of people around the world, including in the US.
Thomas Francis, Jr. (1900–1969), was the thirty-third president of the American Association of Immunologists, serving from 1949 to 1950. He was the Henry Sewall University Professor and chairman of the Department of Epidemiology of the University of Michigan School of Public Health from 1941 to 1969. Francis gained renown for his studies on ...
