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Description -
Control
measures -
Notification and
health situation -
Diagnostic methods
and sampling plans -
Community Reference
Laboratory -
Links
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Infectious haematopoietic necrosis
virus is a bullet-shaped, enveloped
rhabdovirus with a single-stranded RNA
genome of negative polarity that can
cause reduced food consumption and
increased mortality. Some fish and
shrimps that survive infection and/or
epizootics apparently carry the virus for
life and pass it onto their progeny and
other populations by vertical and
horizontal transmission.
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Viral haemorrhagic septicaemia is
a systemic infection of various salmonid
and several non-salmonid fishes. The VHS
virus is readily transmissible to fish of
all ages, and survivors of infection can
become lifelong carriers that shed virus
with urine and sex products. The virus
ostensibly gains access to the fish
through the secondary gill lamellae. In
the hatchery environment, mechanical
transfer of VHS virus on the surface of
animate or inanimate objects presents a
substantial hazard. Prevention of contact
between the virus and the host is the
most effective method for controlling
VHS.
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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fish in an ISA infected farm shall be withdrawn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
VHS and IHN are
notifiable diseases 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 2001/183/EC of 22 February 2001
laying down the sampling plans and diagnostic
methods for the detection and confirmation of
certain fish diseases and repealing Decision
92/532/EEC
Commission
Decision 2003/634/EC
of 28
August 2003 repealing
Decision
2002/304/EC
of 19 April
2002 approving programmes with a view to
obtaining the status of approved zones and of
approved farms in non-approved zones with
regard to one or more of the fish diseases
viral haemorrhagic septicaemia (VHS) and
infectious haematopoietic necrosis (IHN). As
amended by
Commission
Decision 2006/685/EC
.
Commission
Decision 2002/308/EC
of 22 April
2002 establishing lists of approved zones and
approved farms with regard to one or more of
the fish diseases viral haemorrhagic
septicaemia (VHS) and infectious haematopoietic
necrosis (IHN).
As amended by
Commission Decision 2006/674/EC
Statens Veterinaere
Serumslaboratorium
Landbrugsministeriet
Hangoevej 2
8200 Aarhus
Denmark
http://www.eu-crlfish.org/index2.htm
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OIE
web site
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