The Reoviridae pp 287-357 | Cite as


  • Barry M. Gorman
  • Jill Taylor
  • Peter J. Walker
Part of the The Viruses book series (VIRS)


The name Orbivirus was proposed by Borden et al. (1971) to describe a number of arthropod-borne viruses that by morphological and physico-chemical criteria formed a distinct group. The derivation from the Latin “orbis” (“ring” or “circle”) was appropriate, since negatively stained virus particles when examined in the electron microscope have large doughnut shaped capsomers. Borden et al. (1971) distinguished ten serological groups of orbiviruses including the viruses of African horsesickness and bluetongue of sheep. Although it had long been known that these viruses were arthropod-borne, they differed from most of the recognized arboviruses in their relative resistance to inactivation by solvents and detergents. Since most of the arboviruses known at that time contained lipid envelopes, sensitivity to solvents and detergents became one criterion for the classification of arboviruses (Theiler, 1957).


Genome Segment Bluetongue Virus Serological Group Distinct Serotypes Cesium Chloride Gradient 
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Copyright information

© Springer Science+Business Media New York 1983

Authors and Affiliations

  • Barry M. Gorman
    • 1
  • Jill Taylor
    • 1
  • Peter J. Walker
    • 1
  1. 1.Queensland Institute of Medical ResearchBramston TerraceBrisbaneAustralia

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