4P: Overview of The Polio Vaccine

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Table of Contents Overview of Polio Pete Kreckel, microCE, 0.25 hours I wonder what will be written about COVID, vaccines, and masking in the next 50 to 100 years!  All of us students of history remember learning that Franklin Delano Roosevelt was a polio victim.  His efforts with the March of Dimes provided much needed […]