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Bovine Immunodeficiency Virus (view source)
Revision as of 14:23, 15 November 2010
, 14:23, 15 November 2010no edit summary
(BIV)
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==Description==
Bovine Imunodeficiency Virus (BIV) is a Lentivirus (non-oncogenic) which causes a persistent viral infection in cattle worldwide. It was first isolated in 1969 from a cow with a wasting syndrome.
==Pathogenesis==
**Through milk
The mechanism of transfer is not well knonw,but the following posibilites are being researched :
**Through infected semen (e.g.artificial insemination)
* Transplacental
**Placental transfer
* Transmammary
*Diagnosis:
* Vertical transfer through infected Semenn (e.g. Artificial inseminatio)
==Clinical Signs==
**PCR
Bovine immunodeficiency Virus is not associated with a specific disease in cattle but has been associated with the folowing signs:
[[Category:Secondary Immunodeficiency]][[Category:Cattle]][[Category:To Do - Blood]][[Category:To Do - Clinical]]
* Decreased milk yield
* clinical immunodeficiency
* encephalitis
* bovine paraplegic syndrome
* skin infections
* emaciation
==Diagnosis==
*Western Blot
*PCR
==Treatment and Control==
The Incidence of Bovine immunodeficiency virus appears to be low (1%) although can reach >15 % in some herds
==References==
* Merck & Co (2008) '''The Merck Veterinary Manual (Eighth Edition)''' ''Merial''
* Quinn, P.J., Markey, B.K., Carter, M.E., Donnelly, W.J., Leonard, F.C. (2007) '''Veterinary Microbiology and Microbial Disease''' ''Blackwell Publishing''
[[Category:Secondary Immunodeficiency]][[Category:Cattle]][[Category:To Do - Blood]][[Category:To Do - Katie]]