<unk>  (NRIV) is a single-stranded, negative sense, tri-segmented RNA virus. It is a subtype of the of the Bunyamwera virus (BUNV) and closely related to the Batai virus (BATV). NRIV is the only reassortment virus of the subtypes. There is evidence suggesting that NRIV stems from a naturally occurring reassortment event in which a host was infected with both BUNV and BATV. It is commonly found in areas that experience an outbreak of Rift Valley fever virus (RFVF)
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Sepik virus
Slow virus
Hendra virus
Amur virus
Alkhurma virus