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Saturday, January 31, 2009
10:27 AM
Hierarchical classification of virus
This classification of virus was created by Lwoff, R. W. Horne, and P. Tournier in 1962.
It consists of phylum - class - order - family - subfamily - genus - species - strain/type, based on the shared properties of virus
4 main properties are used:
1. Nature of the nucleic acid: RNA or DNA
2. Symmetry of the capsid
3. Presence or absence of an envelope
4. Dimensions of the virion and capsid
Virus families are ordered with genomics, the explanation of relationships through evolution by researching on nucleic acid and protein sequence. All families have suffix -viridae e.g. Caliciviridae, Picornaviridae, Reoviridae, while genera have suffix –virus e.g. in Picornaviridae family there are 5 genera: enterovirus, cardiovirus, rhinovirus, apthovirus and hepatovirus.
Acknowledgement:
http://www.nlv.ch/Virologytutorials/Classification.htmWilson reported
The Mehs virus is spreading...
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