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Any member of the Picornaviridae family, genus Enterovirus; the name is derived from the group designation enteric cytopathogenic human orphan virus.



(acronym for enteric cytopathogenic human orphan virus), a minute virus containing one strand of RNA and lacking an outer protein layer. An orphan virus is a virus detected under laboratory conditions but not associated with any known disease. However, it has been found that this is not true of echovirus. Echovirus belongs to the genus Enterovirus of the family Picornavirus. Many of the more than 30 serotypes live in the human intestine without causing any symptoms of disease. Some, however, are the causative agents of aseptic meningitis, gastroenteritis, and respiratory diseases.

References in periodicals archive ?
During 2006-2008, the five most frequently detected enteroviruses were coxsackievirus B1 (CVB1), echovirus 6, echovirus 9, echovirus 18, and coxsackievirus A9; these accounted for 54% of total known serotyped detections during that period.
Before 2002, echovirus 9 had not been the predominant enterovirus since 1995, when it accounted for 45.
Echovirus 9 was the predominate enterovirus serotype circulating in the eastern United States during 2003 (4) and was identified as the likely etiologic agent in this outbreak.
From 1972 to 1999, seven meningitis outbreaks caused by an enterovirus occurred: echovirus 4 (1972 and 1985-86), coxsackievirus B5 (1976 and 1995), coxsackievirus A9 (1990-1991), echovirus 30 (1994), and echovirus 9 (1999).