LHT System of Virus Classification
The LHT System of Virus Classification is based on chemical and physical characters like nucleic acid (DNA or RNA), Symmetry (Helical or Icosahedral or Complex), presence of envelope, diameter of capsid, number of capsomers. This classification was approved by the Provisional Committee on Nomenclature of Virus (PNVC) of the International Association of Microbiological Societies (1962). It is as follows:
- Phylum Vira (divided into 2 subphyla)
-
- Subphylum Deoxyvira (DNA viruses)
-
- Class Deoxybinala (dual symmetry)
-
- Order Urovirales
-
-
- Family Phagoviridae
-
- Class Deoxyhelica (Helical symmetry)
-
- Order Chitovirales
-
-
- Family Poxviridae
-
- Class Deoxycubica (cubical symmetry)
-
- Order Peplovirales
-
-
- Family Herpesviridae (162 capsomeres)
-
- Order Haplovirales (no envelope)
-
-
- Family Iridoviridae (812 capsomeres)
- Family Adenoviridae (252 capsomeres)
- Family Papiloviridae (72 capsomeres)
- Family Paroviridae (32 capsomeres)
- Family Microviridae (12 capsomeres)
-
-
- Subphylum Ribovira (RNA viruses)
-
- Class Ribocubica
-
- Order Togovirales
-
-
- Family Arboviridae
-
- Order Lymovirales
-
-
- Family Napoviridae
- Family Reoviridae
-
- Class Ribohelica
-
- Order Sagovirales
-
-
- Family Stomataviridae
- Family Paramyxoviridae
- Family Myxoviridae
-
- Order Rhabdovirales
-
- Suborder Flexiviridales
-
- Family Mesoviridae
- Family Peptoviridae
- Suborder Rigidovirales
-
- Family Pachyviridae
- Family Protoviridae
- Family Polichoviridae
Read more about this topic: Virus Classification
Famous quotes containing the words system and/or virus:
“Few white citizens are acquainted with blacks other than those projected by the media and the so—called educational system, which is nothing more than a system of rewards and punishments based upon one’s ability to pledge loyalty oaths to Anglo culture. The media and the “educational system” are the prime sources of racism in the United States.”
—Ishmael Reed (b. 1938)
“[If a woman athlete who had contracted the AIDS virus admitted that she] had been with one hundred or two hundred men, they’d call her a slut, and the corporations would drop her like a lead balloon.”
—Martina Navratilova (b. 1956)