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Echovirus
Definition 1
A species of non-enveloped, spherical and icosahedral viruses in the Picornaviridae family and Enterovirus genus. The genome is composed of single-stranded, positive-sense RNA. Echoviruses are found in humans and cause aseptic meningitis, encephalitis, paralysis and myocarditis via direct fecal-oral contamination, respiration and oral secretions, or indirect routes. (NCI Thesaurus)
Definition 2
Any viral organism that can be assigned to the species Echovirus. (NCI Thesaurus/CDISC)
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