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The 1950's
 A Vaccine to Fight Polio

A Vaccine to Fight Polio
Reading Level
     edHelper's suggested reading level:   grades 6 to 8
     Flesch-Kincaid grade level:   6.55

Vocabulary
     challenging words:    bloodstream, politician, immunity, polio, tenure, supporter, vaccination, isolate, happening, testing, introduction, immediately, goal, vaccine, itself, government
     content words:    President Franklin Roosevelt, President Roosevelt, Jonas Salk, Albert Sabin, World Health Organization

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A Vaccine to Fight Polio
By Jane Runyon 		  
1     In the first half of the 1900's, parents had a lot to worry about. There were several diseases they wanted to protect their children from getting. Polio was one of these diseases.
 
2     Polio is caused by virus. The virus gets into a body through the nose or mouth. Once in, it goes to the person's intestines. It makes a home for itself there to grow. In a few days, the virus is strong enough to cause trouble. The person might feel like he has the flu. He might have a fever, a headache, and vomiting. While all of this is happening, the person is likely passing the virus on to another person.
 
3     After leaving the intestines, the virus enters the person's bloodstream. In most people, the body creates antibodies which stop the virus where it is. The antibodies make the person immune to the virus.

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