feb 27, 1961 - Oral polio vaccine in Commercial Use

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The oral polio vaccine was developed by Albert Sabin. OPV has played a key role to reduce the incidence of polio to near eradication because of its low cost and convenience.
More on polio eradication: http://apublichealthblog.xiaobinzhou.agnesscott.org/a-history-of-global-health/eradicate-or-not-the-ultimate-question-for-infectious-diseases-part-2/

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