who discovered Anti_polio vaccine?
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JONAS EDWARD SALK......
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The first polio vaccine was the inactivated polio vaccine.[1] It was developed by Jonas Salk and came into use in 1955.[1][5] The oral polio vaccine was developed by Albert Sabinand came into commercial use in 1961.[1][6]They are on the World Health Organization's List of Essential Medicines, the most effective and safe medicines needed in a health system.[7
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