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The first clinical description of polio provide by Micheal Underwood.
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The first time the US was impact by polio was in Vermont, this outbreak caused 18 deaths and over 100 infected.
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Two scientists named Karl Landsteiner and Erwin Popper test that Polio is indeed a virus by transmitting it to a monkey.
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The Polio virus was caught using a filter, this will allow for future study and research.
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Two different research teams developed Polio vaccines, and they both ended awfully, many people had allergic reactions, made sick, paralyzed and even died from the vaccine.
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After a successful trial, Dr. Thomas Francis declared that there was a cure for Polio.
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The final case of polio is found in the US
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The current polio vaccine gets replace by a new one that uses inactivated polio, which makes it safer than older one.
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There have been no new case the are from the US, however there have been cases of people bringing polio in, and some underdeveloped counties still have problems quoth the virus.
