1. This is the single largest group of RNA viruses with 30 families. 2. Currently there are 5 orders and 47 families of RNA viruses recognised. 3. Classification of the RNA viruses has proven to be a difficult problem. 4. The virus is a member of the Bunyaviridae family of RNA viruses . 5. The virus has a fairly high mutation rate even for an RNA virus . 6. Negative stranded RNA virus transcription, using polymerase stuttering is the method of transcription. 7. Some nucleic acids of RNA viruses function directly as mRNA without further modification. 8. The Orsay virus is an RNA virus that is closely related to nodaviruses. 9. Another term for RNA viruses that explicitly excludes retroviruses is "'ribovirus " '. 10. DENV is a single-stranded positive-polarity RNA virus of the Flaviviridae family.
