bunyavirus
noun(bun-ya-vi-rus)
any of a family (Bunyaviridae) of usually spherical or pleomorphic single-stranded RNA viruses usually transmitted by the bite of an arthropod (such as a mosquito) or in the bodily secretions of rodents and including the hantaviruses and the causative agents of Rift Valley fever, sandfly fever, and some forms of encephalitis and hemorrhagic fever