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Michael Underwood was a English physician who provided the first clinical description of Polio.
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In 1840 Jacob Heine describes the clinical features of Polio. He describes Polio's involvement in the spinal cord.
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The First U.S. Polio epedemic that occured was in Vermont with 132 cases of Polio
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Polio is discovered to be contagious in 1905.
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There was a huge Polio epedemic in New York in 1916.
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Scientist start to look for a Polio vaccine
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The Polio vaccine is ofically licenseed
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Sabin found a new oral vaccine that came into commercial use in 1961
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By now Polio was practically eliminated from America because of the vaccines.
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The amount of Polio cases has significantly decreased from when it first started.
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National Polio ay is celebrated on October 24th each year