This is the baltimore classification------------Virus classification
DNA viruses
- Group I: viruses possess double-stranded DNA and include such virus families as Herpesviridae (examples like HSV1 (oral herpes), HSV2 (genital herpes), VZV (chickenpox), EBV (Epstein-Barr virus), CMV (Cytomegalovirus)), Poxviridae (smallpox) and many tailed bacteriophages. The mimivirus was also placed into this group.
- Group II: viruses possess single-stranded DNA and include such virus families as Parvoviridae and the important bacteriophage M13.
| Virus Family | Virus Genus | Virion- naked/ enveloped | Capsid Symmetry | Type of nucleic acid |
|---|---|---|---|---|
| 1.Adenoviridae | Adenovirus | Naked | Icosahedral | ds |
| 2.Papovaviridae | Papillomavirus | Naked | Icosahedral | ds circular |
| 3.Parvoviridae | B 19 virus | Naked | Icosahedral | ss |
| 4.Herpesviridae | Herpes Simplex Virus, Varicella zoster virus, Cytomegalovirus, Epstein Barr virus | Enveloped | Icosahedral | ds |
| 5.Poxviridae | Small pox virus, Vaccinia virus | Complex coats | Complex | ds |
| 6.Hepadnaviridae | Hepatitis B virus | Enveloped | Icosahedral | ds circular |
| 7.Polyomaviridae | Polyoma virus (progressive multifocal leucoencephalopathy) | ? | ? | ds |
[edit] RNA viruses
- For more details on this topic, see RNA virus.
- Group III: viruses possess double-stranded RNA genomes, e.g. rotavirus. These genomes are always segmented.
- 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), SARS virus, hepatitis C virus, yellow fever virus, and rubella virus.
- Group V: viruses possess negative-sense single-stranded RNA genomes. The deadly Ebola and Marburg viruses are well known members of this group, along with influenza virus, measles, mumps and rabies.
[edit] Reverse transcribing viruses
- For more details on this topic, see Reverse transcribing virus.
- Group VI: viruses possess single-stranded RNA genomes and replicate using reverse transcriptase. The retroviruses are included in this group, of which HIV is a member.
- Group VII: viruses possess double-stranded DNA genomes and replicate using reverse transcriptase. The hepatitis B virus can be found in this group.
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