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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, 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 ...
In a remarkable essay published in 1960, Thomas Francis, Jr. introduced the concept of ‘original antigenic sin’; the idea that antibody responses to early childhood influenza virus infections are preferentially recalled later in life upon exposure to antigenically distinct viral strains.
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.
THOMAS FRANCIS, JR. July 15,1900-October 1,1969 BY JOHN R. PAUL 38 THOMAS FRANCIS, JR., was born in Gas City, Indiana, on July 15, 1900, the son of Thomas and Elizabeth Anne (Cadogan) Francis. His father had emigrated from Wales shortly before Thomas, {r., came into the world.
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An American physician, virologist, and epidemiologist, he was the first person to isolate the influenza B virus and helped to develop vaccines against influenza virus A and B in the early 1940s. His contributions are recognised as a foundation for “future work aimed at the eventual conquest of the wholesale destroyer—influenza”.
