Editing Virus classification (section)

===RNA viruses===
{{further|RNA virus}}

All viruses that have an [[RNA]] [[genome]], and that encode an [[RNA-dependent RNA polymerase]] (RdRp), are members of the kingdom ''[[Orthornavirae]]'', within the realm ''[[Riboviria]]''.<ref name="ictv">{{cite web|title=Virus Taxonomy: 2019 Release|url=https://ictv.global/taxonomy|website=talk.ictvonline.org|publisher=International Committee on Taxonomy of Viruses|access-date=25 April 2020}}</ref>
* '''Group III''': viruses possess double-stranded RNA genomes, e.g. [[rotavirus]].
* '''Group IV''': viruses possess positive-sense single-stranded RNA genomes. Many well known viruses are found in this group, including the [[picornaviruses]] (which is a family of viruses that includes well-known viruses like Hepatitis A virus, enteroviruses, rhinoviruses, poliovirus, and foot-and-mouth virus), [[Severe Acute Respiratory Syndrome|SARS]] virus, [[hepatitis C]] virus, [[yellow fever]] virus, and [[rubella]] virus.
* '''Group V''': viruses possess negative-sense single-stranded RNA genomes. [[Ebola]] and [[Marburg virus]]es are well known members of this group, along with [[influenza virus]], [[measles]], [[mumps]] and [[rabies]].

{| class="wikitable"
|+Examples of RNA viruses
|-
! Virus Family
! Examples (common names)
! Capsid<br> naked/enveloped
! Capsid<br> Symmetry
! Nucleic&nbsp;acid type
! Group
|-
| 1. ''[[Reoviridae]]''
| [[Reovirus]], [[rotavirus]]
| Naked
| Icosahedral
| ds
| III
|-
| 2. ''[[Picornaviridae]]''
| [[Enterovirus]], [[rhinovirus]], [[hepatovirus]], [[cardiovirus]], [[aphthovirus]], [[poliovirus]], [[parechovirus]], [[erbovirus]], [[kobuvirus]], [[teschovirus]], [[Coxsackievirus|coxsackie]]
| Naked
| Icosahedral
| ss
| IV
|-
| 3. ''[[Caliciviridae]]''
| [[Norovirus|Norwalk virus]]
| Naked
| Icosahedral
| ss
| IV
|-
| 4. ''[[Togaviridae]]''
| [[Eastern equine encephalitis]], [[Chikungunya]]
| [[Viral envelope|Enveloped]]
| Icosahedral
| ss
| IV
|-
| 5. ''[[Arenaviridae]]''
| [[Lymphocytic choriomeningitis virus]], [[Lassa fever]]
| [[Viral envelope|Enveloped]]
| Complex
| ss(−)
| V
|-
| 6. ''[[Flaviviridae]]''
| [[Dengue virus]], [[hepatitis C]] virus, [[yellow fever]] virus, [[Zika virus]]
| [[Viral envelope|Enveloped]]
| Icosahedral
| ss
| IV
|-
| {{nowrap|7. ''[[Orthomyxoviridae]]''}}
| [[Influenzavirus A]], [[influenzavirus B]], [[influenzavirus C]], [[isavirus]], [[thogotovirus]]
| [[Viral envelope|Enveloped]]
| Helical
| ss(−)
| V
|-
| 8. ''[[Paramyxoviridae]]''
| [[Measles virus]], [[mumps virus]], [[respiratory syncytial virus]], [[Rinderpest]] virus, [[canine distemper virus]]
| [[Viral envelope|Enveloped]]
| Helical
| ss(−)
| V
|-
| 9. ''[[Bunyaviridae]]''
| [[California encephalitis virus]], [[Sin nombre virus]]
| [[Viral envelope|Enveloped]]
| Helical
| ss(−)
| V
|-
| 10. ''[[Rhabdoviridae]]''
| [[Rabies virus]], [[Vesicular stomatitis]]
| [[Viral envelope|Enveloped]]
| Helical
| ss(−)
| V
|-
| 11. ''[[Filoviridae]]''
| [[Ebola virus]], [[Marburg virus]]
| [[Viral envelope|Enveloped]]
| Helical
| ss(−)
| V
|-
| 12. ''[[Coronaviridae]]''
|[[Human coronavirus 229E]], [[Human coronavirus NL63]], [[Human coronavirus OC43]], [[Human coronavirus HKU1]], [[Middle East respiratory syndrome-related coronavirus]], [[Severe acute respiratory syndrome coronavirus]], and [[Severe acute respiratory syndrome coronavirus 2]]
| [[Viral envelope|Enveloped]]
| Helical
| ss
| IV
|-
| 13. ''[[Astroviridae]]''
| [[Astrovirus]]
| Naked
| Icosahedral
| ss
| IV
|-
| 14. ''[[Bornaviridae]]''
| [[Borna disease virus]]
| [[Viral envelope|Enveloped]]
| Helical
| ss(−)
| V
|-
| 15. ''[[Arteriviridae]]''
| [[Arterivirus]], [[Equine viral arteritis|equine arteritis virus]]
| [[Viral envelope|Enveloped]]
| Icosahedral
| ss
| IV
|-
| 16. ''[[Hepeviridae]]''
| [[Hepatitis E virus]]
| Naked
| Icosahedral
| ss
| IV
|}