Causes, incidence, and risk factors
Poliomyelitis is a disease caused by infection with the poliovirus. The virus spreads by:
Direct person-to-person contact
Contact with infected mucus or phlegm from the nose or mouth
Contact with infected feces
Source: Poliomyelitis | University of Maryland Medical Center http://umm.edu/Health/Medical/Ency/Articles/Poliomyelitis#ixzz2qLMbpRR8
University of Maryland Medical Center
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