Salk-jonas-edward definitions

sôlk
American microbiologist who developed the first effective killed-virus vaccine against poliomyelitis, introduced publicly in 1955.
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American microbiologist who developed the first effective killed-virus vaccine against poliomyelitis, introduced publicly in 1955.
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American microbiologist who in 1954 developed the first effective vaccine against polio, using an inactivated form of the virus. Salk's vaccine, which was administered by injection, was widely used until 1959 when Albert Sabin introduced an orally administered vaccine derived from a live form of the virus.
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