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poliomyelitis virus


Definition: a small single-stranded RNA virus of the genus Enterovirus, family Picornaviridae, causing poliomyelitis in humans; the route of infection is the alimentary tract, but the virus may enter the bloodstream and nervous system, sometimes causing paralysis of the limbs and, rarely, encephalitis; many infections are inapparent; serologic types 1, 2, and 3 are recognized, type 1 being responsible for most paralytic poliomyelitis and most epidemics.

Synonym(s): poliovirus hominis

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© Copyright 2018 Wolters Kluwer. All Rights Reserved. Review Date: Sep 19, 2016.