An enterovirus in the family Picornaviridae. There are 3 distinct serotypes, with Type 1 responsible for 85% of the cases of paralytic polio and most epidemics.
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po·lio·vi·rus 'pō-lē-(.)ō-.vī-rəs n a picornavirus of the genus Enterovirus (species Poliovirus) occurring in three distinct serotypes that cause poliomyelitis see sabin vaccine, salk vaccine
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n.
one of a small group of RNA-containing viruses causing poliomyelitis. They are included within the picornavirus group.
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po·lio·vi·rus (poґle-o-vi″rəs) [poliomyelitis + virus] a species of viruses of the genus Enterovirus that cause poliomyelitis. It is separable into three serotypes, designated types 1, 2, and 3. Historically, type 1 has been responsible for about 85 per cent of all paralytic poliomyelitis and for most epidemics, type 3 for about 10 per cent of paralytic poliomyelitis and for occasional epidemics, and type 2 for about 5 per cent of paralytic poliomyelitis. Wild type 2 has now been eliminated worldwide as a result of efforts by the World Health Organization to eradicate poliomyelitis. polioviral adjMedical dictionary. 2011.