orphan viruses

orphan viruses
viruses which when isolated originally in tissue culture showed no specific association with disease, such as the enteric orphan viruses; some have since been found to occur in association with human disease.

Medical dictionary. 2011.

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  • enteric orphan viruses — viruses isolated from the intestinal tracts of animals, called orphan viruses because they are often not specifically associated with illness; they include such viruses isolated from cattle (ecboviruses), dogs (ecdoviruses), humans (echoviruses) …   Medical dictionary

  • Virus — A microorganism smaller than a bacteria, which cannot grow or reproduce apart from a living cell. A virus invades living cells and uses their chemical machinery to keep itself alive and to replicate itself. It may reproduce with fidelity or with… …   Medical dictionary

  • Echovirus — A group of viruses found in the gastrointestinal tract. The echo part of the name stands for enteric cytopathic human orphan viruses. Orphan implied that they were viruses not associated with any disease. However, it is now known that echoviruses …   Medical dictionary

  • Reoviridae — Taxobox color = violet name = Reoviruses image width = 240px image caption = Intact double shelled Rotavirus particles virus group = iii familia = Reoviridae subdivision ranks = Genera subdivision = Aquareovirus Coltivirus Cypovirus Fijivirus… …   Wikipedia

  • Reovirus — A genus of viruses currently called Orthoreovirus (family Reoviridae) that are 80 nm in diameter, with distinct double layers of capsomeres, and have vertebrates as hosts; they have been recovered from children with upper respiratory tract… …   Medical dictionary

  • Reoviridae — Class III viruses, with a segmented double stranded RNA genome; there are about 8 10 segments each coding for a different polypeptide and only one strand of the RNA (minus strand) acts as template for mRNA (plus strand). Icosahedral capsid, and… …   Dictionary of molecular biology

  • reovirus — /ree oh vuy reuhs, ree oh vuy /, n., pl. reoviruses. any large virus of the family Reoviridae, having double stranded RNA and a polyhedral capsid, including those causing infantile gastroenteritis. [1955 60; r(espiratory) e(nteric) o(rphan)… …   Universalium

  • reovirus — n. one of a group of small RNA containing viruses that infect both respiratory and intestinal tracts without producing specific or serious diseases (and were therefore termed respiratory enteric orphan viruses). Compare: echovirus …   The new mediacal dictionary

  • Entérovirus — Poliovirus, le virus de la poliomyélite …   Wikipédia en Français

  • ECHO-Viren — Enteric cytopathogenic human orphan Viren EN enteric cytopathogenic human orphan viruses …   Abkürzungen und Akronyme in der deutschsprachigen Presse Gebrauchtwagen

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