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Dr Sabin administers a oral vaccine to a girl in a dress next to an older boy

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1962

Sabin vaccine replaced Salk as the most used polio vaccine


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Linkhttps://history.nih.gov/display/history/Biologics+-+Polio+Timeline+1958
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Linkhttps://history.nih.gov/display/history/Biologics+-+Polio+Timeline+1967

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