A genus of viruses of vertebrates (family Reoviridae) that multiply in arthropods, including certain viruses formerly included with the arboviruses. They are antigenically distinct from other groups of viruses and are characterized by an indistinct but rather large outer layer of capsomeres that give the appearance of rings (hence the name). The genus includes, among others, bluetongue virus of sheep and African horse sickness virus. [L. orbis, ring, + virus]

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or·bi·vi·rus 'ȯr-bi-.vī-rəs n
1) cap a genus of double-stranded RNA viruses of the family Reoviridae that have a genome composed of 10 segments with the core RNA particles having characteristic ring-shaped capsomers and that include the causative agents of African horse sickness and bluetongue
2) any of the genus Orbivirus of reoviruses

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Or·bi·vi·rus (orґbĭ-vi″rəs) [L. orbis circle + virus] orbiviruses; a genus of viruses of the family Reoviridae, separable into at least 14 antigenically distinct groups. They infect a variety of vertebrates and include the human pathogens Orungo virus and Kemerovo virus, as well as the agents of bluetongue and African horse sickness. Mosquitoes, sandflies, and ticks are vectors.

Medical dictionary. 2011.

Look at other dictionaries:

  • Orbivirus — Virus classification Group: Group III (dsRNA) Order: Unassigned Family: Reoviridae …   Wikipedia

  • Orbivirus — género de la familia de virus Reoviridae que contiene ácido ribonucleico bicatenario. Se caracteriza por una capa externa de anillos de capsómeros. Los insectos son huéspedes de los orbivirus. Entre las infecciones causadas por especies de estos… …   Diccionario médico

  • Orbivirus — См. Орбивирусы (Источник: «Словарь терминов микробиологии») …   Словарь микробиологии

  • Orbivirus — Este artículo o sección necesita referencias que aparezcan en una publicación acreditada, como revistas especializadas, monografías, prensa diaria o páginas de Internet fidedignas. Puedes añadirlas así o avisar …   Wikipedia Español

  • orbivirus — Genus of Reoviridae that infects a wide range of vertebrates and insects …   Dictionary of molecular biology

  • orbivirus — …   Useful english dictionary

  • орбивирусы — (Orbivirus) род вирусов сем. реовирусов, включающий вирусы позвоночных, способные размножаться в организме насекомых, напр., возбудители аргентинской геморрагической лихорадки …   Большой медицинский словарь

  • Lengua azul —   Virus de la lengua azul …   Wikipedia Español

  • Bluetongue disease — Taxobox | color=violet name = Bluetongue virus virus group = III familia = Reoviridae genus = Orbivirus species = Bluetongue virus, BTVBluetongue disease or catarrhal fever is a non contagious, insect borne viral disease of ruminants, mainly… …   Wikipedia

  • Fièvre catarrhale — d une brebis …   Wikipédia en Français

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