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Polio vaccine was developed by two scientists named Sabin and Salk. The Salk vaccine was given by injection and the Sabin was given by mouth. That vaccine was placed onto a sugar cube. When I was little, we had to be quiet and 'rest' during hot afternoons and had to stay away from swimming. When the vaccines came out we were right there to get them. We were given the Salk first and then we got the Sabin later on (just to be on the safe side).

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9y ago

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