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Medical Definition of Avibirnavirus
1. A genus of RNA viruses in the family birnaviridae infecting birds. It is transmitted horizontally with no known vectors. The type species is infectious bursal disease virus. (12 Dec 1998)
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1. A genus of RNA viruses in the family birnaviridae infecting birds. It is transmitted horizontally with no known vectors. The type species is infectious bursal disease virus. (12 Dec 1998)