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Virus classification
Group: Group V ((-)ssRNA)
Family: None Currently Assigned
Genus: Ophiovirus


Electron microscopy of an Ophiovirus, specifically the Citrus psorosis virus.

The viral genus Ophiovirus is characterized by an elongated and highly filamentous and flexible nucleocapsid with helical symmetry.

Virus capsid is not enveloped and have a constant diameter of 1500-2500 nm and a width of 3 nm, or 9 nm. They form kinked circles, which can collapse to form linear duplex structures, much like a spring. The entire genome is 1100-1200 nucleotides long[1].

The best studied species under this genus is the Citrus psorosis virus.


  1. ICTVdB Management (2006). Ophiovirus. In: ICTVdB - The Universal Virus Database, version 4. Büchen-Osmond, C. (Ed), Columbia University, New York, USA.

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