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, and pelvis. Stiffness in the neck and back also may develop. (World Book Encyclopedia)

Non-paralytic form of polio has many symptoms. It is accompanied by nausea, headache, sore throat, back pain, neck pain, and stiffness. There are changes in reflex and elevated spinal fluid count. About sixty-five percent of known cases during the outbreak of polio were non-paralytic. Paralytic polio only has a few minor symptoms, but it has weakness in one or more muscle groups. (Polio Fact Sheet)

There are three viruses that can cause polio, type I, II, III. They grow in living cells and get in the body through the nose and mouth, and then it is carried to the intestines.

Polio vaccines give life long immunity by two ways, by immunization and natural infection with the virus. (Polio Vaccines) There are two vaccines: the oral polio vaccine and the inactivated polio vaccine. "The oral polio vaccine was invented by Albert Sabin in 1961." (Polio Vaccines) It is a weakened, live virus, which can be taken orally. This vaccine produces antibodies in the blood to fight the virus. (Polio Vaccines)

"Polio Vaccines. The Global Polio Eradication Initiative." 3 pages. On-line. Internet. 10 March 1999. Available WWW: http//www.whqsabin.who.int: 8083/vaccines.htm

The United States could save about one hundred and five million dollars a year if there were not any vaccinations for this disease. (Polio Fact Sheet) "In the United States there are 1.6 million polio survivors." (Polio Fact Sheet) There have been mass vaccination campaigns in which more than 100 million Americans received the Sabin vaccine to conquer polio. (Locke, 133) "In 1969, there were only nineteen cases of paralytic polio in the United States, since 1894 when the disease was first recognized." ("Conquest of Polio", 6) In 1994, Americans were polio-free. ("The Be

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