Bunyaviruses and Bunyaviridae

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Abstract
A new family is described, the Bunyaviridae, which contains a single genus, Bunyavirus. The main characteristics of the family are as follows: single-stranded RNA, total molecular weight about 7 × 106 daltons, probably in three segments. Virions spherical, enveloped particles 90–100 nm in diameter. Envelope contains at least one virus-specified glycopeptide. Develop in the cytoplasm, mature by budding into smooth-surfaced vesicles in the Golgi region or nearby. Internal ribonucleoprotein composed of long strands 2–2.5 nm broad. There are at least 150 members, 87 serologically related bunyaviruses and other probable bunyaviruses.