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Description -
Control
measures -
Notification and
health situation -
Community Reference
Laboratory -
Links
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Infectious salmon anaemia is an
infectious disease of Atlantic salmon
(Salmo salar) caused by an
orthomyxo-like virus. Atlantic salmon
is the only susceptible fish species
known to develop the disease, but,
following experimental infection, the
ISA virus (ISAV) may survive and
replicate in sea trout and brown trout,
and in rainbow trout, which thus may
act as carriers of the virus for an
unknown period of time.
Transmission is done through
contact with an infected fish or
contaminated equipment. Even though
some fish become lethargic, there are
few outward signs. Interior lesions are
not always grossly visible but may
include haemorrhaging on the kidney and
other organs, swollen eyes, fluid in
the body cavity, swelling of kidney,
pale gills, darkening of the posterior
gut and swelling of the spleen.
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For more details, click on the OIE technical cards on IHN and VHS
Council
Directive 93/53/EEC
introducing minimum Community measures for
the control of certain fish diseases. All
fish in an ISA infected farm shall be withdrawn
in accordance with a scheme established by the
official service and approved by the
Commission.
As amended by
Council
Directives 2000/27/EC
Commission
Decision 2001/288/EC
Infectious salmon
anaemia is a notifiable disease according to
Council Directive
82/894/EEC
of 21 December 1982 on the notification of
animal diseases within the Community.
Click on
ADNS for a
description of the notification system and the
latest health situation table.
Commission
Decision 2003/466/EC of 13 June
establishing criteria for zoning and official
surveillance following suspicion or
confirmation of the presence of infectious
salmon anaemia (ISA).
Commission decision
2001/872/EC
of 7
December 2001 approving the scheme submitted by
the
United Kingdom and Ireland for the
withdrawal of all fish in farms infected
with infectious salmon anaemia (ISA) virus and
repealing Decision 2001/494/EC.
Commission decision
2003/70/EC
of 29
January 2003 on certain
protective measures in respect of
infectious salmon anaemia in salmonids in
Norway.
As amended by
Commission Decision
2003/392/EC
Commission decision
2003/71/EC
of 29
January 2003 on certain
protective measures in respect of
infectious salmon anaemia in salmonids in the
Faeroe Islands.
As amended by
Commission Decision
2003/392/EC
Statens Veterinaere
Serumslaboratorium
Landbrugsministeriet
Hangoevej 2
8200 Aarhus
Denmark
http://www.eu-crlfish.org/index2.htm
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OIE
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