Most people who get infected with poliovirus will not have any visible symptoms. About 1 out of 4 people (or 25 out of 100) with poliovirus infection will have flu-like symptoms. These symptoms usually last 2 to 5 days, then go away on their own. A smaller proportion of people with poliovirus infection will develop other, more serious symptoms that affect the brain and spinal cord: Meningitis  & Paralysis.”

CDC Centers for Disease Control and Prevention (CDC)


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