A virus in the genus of the family Bunyaviridae that includes at least 160 types, i.e., California encephalitis virus and LaCrosse encephalitis virus.
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bun·ya·vi·rus 'bən-yə-.vī-rəs n
1) cap a genus of numerous single-stranded RNA viruses (as the La Crosse virus) of the family Bunyaviridae that are usu. transmitted by mosquitoes or ticks
2) any of the family Bunyaviridae of single-stranded RNA viruses
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Bun·ya·vi·rus (bunґyə-vi″rəs) [Bunyamwera, town in Uganda where the type species was isolated] former name for Orthobunyavirus.Medical dictionary. 2011.