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Viral Haemorrhagic Septicaemia (view source)
Revision as of 17:44, 17 August 2012
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|link = https://bloomsbury.mediacore.tv/podcasts/wikivet-english/viral-haemorrhagic-septicaemia}}
Caused By: '''''Viral Haemorrhagic Septicaemia Virus — VHSV — Egtved virus'''''
Caused By: '''''Viral Haemorrhagic Septicaemia Virus — VHSV — Egtved virus'''''
==Introduction==
==Introduction==
Viral Haemorrhagic Septicaemia is an '''economically important haematological disease of fish''', primarily salmonids, caused by a '''bullet shaped, enveloped RNA [[Rhabdoviridae|rhabdovirus]]. '''
Viral Haemorrhagic Septicaemia is an '''economically important haematological disease of fish''', primarily salmonids, caused by a '''bullet shaped, enveloped RNA [[Rhabdoviridae|rhabdovirus]].''' The virus is a member of the genus Novirhabdovirus and they share a common and distinctive feature – the presence of an additional non-virion protein encoding gene.
There are three known serotypes of VSHV with some cross-immunity between them.
There are three known serotypes of VSHV with some cross-immunity between them. Based on phylogenetic analyses of nucleotide sequences the virus has been shown to have four genotypes and they are related to geographical distribution rather than host specficity.
This disease is not zoonotic.
This disease is not zoonotic.
'''Grass carp, rainbow trout, brown trout, grayling, pike, bass, Japanese flounder, turbot, pike, chinook salmon and Atlantic salmon''' can be infected by VHSV.
'''Grass carp, rainbow trout, brown trout, grayling, pike, bass, Japanese flounder, turbot, pike, chinook salmon and Atlantic salmon''' can be infected by VHSV.
The number of wild species in which the virus is isolated is large and growing.
The number of wild species in which the virus is isolated is large and growing and they include both freshwater and marine fish.
'''Younger fish are more susceptible''' to disease than adults, but this is not exclusive.
'''Younger fish are more susceptible''' to disease than adults, but this is not exclusive.
==Control==
==Control==
'''Official health surveillance and control policies''' are in place and have successfully eradicated the disease from several parts of Europe.
'''Official health surveillance and control policies''' are in place and have successfully eradicated the disease from several parts of Europe.
'''Disinfectants''', such as chlorine, hypochlorite and iodophors are effective against rhabdoviruses and will prevent the spead of the virus from farm to farm via transport tanks and equipment.
'''Genetic selection and vaccination are in their experimental stages. '''
'''Genetic selection and vaccination are in their experimental stages. '''
{{Learning
{{Learning
==References==
==References==
<references/>
<references/>
Smail, D.A., Snow, M. (2011). '''Viral Haemorrhagic Septicaemia'''. In: '''Fish Diseases and Disorders, Volume 3''': Viral, Bacterial and Fungal Infections, 2nd edition (eds. P.T.K Woo and D.W. Bruno), ''CABI'', Wallingford, U.K. pages 110-142.
{{CABI source
|datasheet = [http://www.cabi.org/ahpc/?compid=3&dsid=66346&loadmodule=datasheet&page=2144&site=160 viral haemorrhagic septicaemia] and [http://www.cabi.org/ahpc/?compid=3&dsid=66348&loadmodule=datasheet&page=2144&site=160 viral haemorrhagic septicaemia virus]
|date = 31 July 2011
}}
<br><br>
{{Patrick Woo
|date=20 September 2011
}}
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[[Category:Fish Diseases]]
[[Category:Fish Diseases]]
[[Category:CABI Expert Review]]
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