Polio Before the development of the Salk and Sabin vaccines, polio was a serious infection that affected the central nervous system; however with proper vaccinations it can be eradicated in the United States today. There are different kinds of polio. They include spinal polio, non-paralytic form, and paralytic polio. Spinal polio is the most common form that occurs when polio viruses attack nerve cells and control the muscles of the legs, arms, trunk, diaphragm, abdomen, …
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showed last 75 words of 710 total
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