Modern Marvels: The Polio Vaccine explains the devastation of poliomyelitis (polio), especially in the early 1800s, and the quest for a proper vaccine that eventually ended with Jonas Salk's revolutionary discovery in the early '50s. Sufferers of the disease discuss its effects, and scientists go over why Salk's vaccine-discovery was so essential. Amanda Van Keuren, Rovi
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Modern Marvels: The Polio Vaccine explains the devastation of poliomyelitis (polio), especially in the early 1800s, and the quest for a proper vaccine that eventually ended with Jonas Salk's revolutionary discovery in the early '50s. Sufferers of the disease discuss its effects, and scientists go over why Salk's vaccine-discovery was so essential. Amanda Van Keuren, Rovi
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Fair. Ex-Library rental. Disc(s) are professionally cleaned and free of scratches. Includes disc(s), case, and artwork. Disc(s), case, and artwork may contain library/security stickers and ink writing. ARTWORK MAY BE UNORIGINAL AND PRINTED BY LIBRARY. Case and artwork may show some wear. If applicable, digital copies may not be redeemable. All disc(s) are authentic.