brit hjeltnes aquatic animal health standards commission ... · v i r a l h a e m o r r h a g i c s...
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Using the Code Brit Hjeltnes
Aquatic Animal Health Standards Commission
The OIE
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Collect, analyse and disseminate veterinary scientific
information
OIE’s objectives
Sanitary safety: safeguard world trade by publishing
health standards for international trade in animals
and animal products
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Viral Haemorrhagic Septicaemia
(VHS)
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VHS in Norway:
Oslo
Bergen
Molde 2007
1974-2006:
No clinical outbreaks found
No infections detected by the
extensive VHS/IHN surveillance
program
2007:
1 sea-water rainbow trout
farm infected
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C H A P T E R 1 0 . 9 .
V I R A L H A E M O R R H A G I C S E P T I C A E M I A
Article 10.9.1.
For the purposes of the Aquatic Code, viral haemorrhagic septicaemia (VHS) means infection with VHS virus
(VHSV, synonym: Egtved virus) of the genus Novirhabdovirus of the family Rhabdoviridae.
Information on methods for diagnostic are provided in the Aquatic Manual.
Article 10.9.2.
Scope
The recommendations in this chapter apply to: rainbow trout (Oncorhynchus mykiss), brown trout (Salmo trutta),
grayling (Thymallus thymallus), white fish (Coregonus spp.), pike (Esox lucius), turbot (Scophthalmus maximus),
herring and sprat (Clupea spp.), Pacific salmon (Oncorhynchus spp.), Atlantic cod (Gadus morhua), Pacific cod
(G. macrocephalus), haddock (G. aeglefinus) and rockling (Onos mustelus). These recommendations also apply
to any other susceptible species referred to in the Aquatic Manual when traded internationally.
Article 10.9.3.
Importation or transit of aquatic animals and aquatic animal products for any purpose from a country,
zone or
compartment not declared free from viral haemorrhagic septicaemia
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3. Preliminary control zone - VHS
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Article 10.9.5
Viral haemorrhagic septicaemia free zone or free compartment
A zone or compartment within the territory of one or more countries not declared free from VHS may be declared free by the Competent Authority(ies)
of the country(ies) concerned if the zone or compartment meets the conditions referred to in points 1, 2 or 3 below.
If a zone or compartment extends over more than one country, it can only be declared an VHS free zone or compartment if all the Competent
Authorities confirm that the conditions have been met.
A zone or compartment where the species referred to in Article 10.9.2. are present but there has been no observed occurrence of the disease for at
least the past ten years despite conditions that are conducive to its clinical expression, as described in the corresponding chapter of the Aquatic
Manual, may be declared free from VHS when basic biosecurity conditions have been continuously met in the zone or compartment for at least
the past ten years.
OR
A zone or compartment where the last observed occurrence of the disease was within the past ten years or where the infection status prior to targeted
surveillance was unknown (e.g. because of the absence of conditions conducive to clinical expression as described in the corresponding chapter
of the Aquatic Manual) may be declared free from VHS when:
basic biosecurity conditions have been continuously met for at least the past two years; and
targeted surveillance, as described in Chapter 1.4. of the Aquatic Code, has been in place for at least the last two years without detection of
VHSV.
OR
A zone previously declared free from VHS but in which the disease is detected may be declared free
from VHS again when the following conditions have been met:
on detection of the disease, the affected area was declared an infected zone and a protection zone
was established; and
infected populations have been destroyed or removed from the infected zone by means that
minimise the risk of further spread of the disease, and the appropriate disinfection procedures (see
Aquatic Manual) have been completed; and
targeted surveillance, as described in Chapter 1.4. of the Aquatic Code, has been in place for at least
the last two years without detection of VHSV; and
previously existing basic biosecurity conditions have been reviewed and modified as necessary and
have continuously been in place for at least the past two years.
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C H A P T E R 1 . 4 .
A Q U A T I C A N I M A L H E A L T H S U R V E I L L A N C E
Article 1.4.1.
Introduction and objectives
1) Surveillance activities may be performed to achieve any of the following objectives:
a) demonstrating the absence of disease;
b) identifying events requiring notification as listed in Article 1.1.3. of the Aquatic Code;
c) determining the occurrence or distribution of endemic disease, including changes to their incidence or
prevalence (or its contributing factors), in order to:
i) provide information for domestic disease control programmes,
ii) provide relevant disease occurrence information to be used by trading partners for qualitative and quantitative risk
assessment.
1.4.2.Principles of surveillance
1.4.3.Critical elements of surveillance
1.4.4.Population-based surveys
1.4.5. Non-random data sources used in surveillance
1.4.6. Pathways to demonstrate freedom from disease
1.4.7.Maintainance of disease free status.
1.4.8. Design of surveillance programmes to demonstrate freedom from diseases
1.4.9. Specific requirements for complex non-survey data sources for freedom from disease
1.4.10. Surveillance for distribution and occurrence of disease
1.4.11 Examples of surveillance programmes
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Destruction of fish at the infected site
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C H A P T E R 1 0 . 9 .
V I R A L H A E M O R R H A G I C S E P T I C A E M I A
Article 10.9.1.
For the purposes of the Aquatic Code, viral haemorrhagic septicaemia (VHS) means infection with VHS virus
(VHSV, synonym: Egtved virus) of the genus Novirhabdovirus of the family Rhabdoviridae.
Information on methods for diagnostic are provided in the Aquatic Manual.
Article 10.9.2.
Scope
The recommendations in this chapter apply to: rainbow trout (Oncorhynchus mykiss), brown trout (Salmo trutta),
grayling (Thymallus thymallus), white fish (Coregonus spp.), pike (Esox lucius), turbot (Scophthalmus maximus),
herring and sprat (Clupea spp.), Pacific salmon (Oncorhynchus spp.), Atlantic cod (Gadus morhua), Pacific cod
(G. macrocephalus), haddock (G. aeglefinus) and rockling (Onos mustelus). These recommendations also apply
to any other susceptible species referred to in the Aquatic Manual when traded internationally.
Article 10.9.3.
Importation or transit of aquatic animals and aquatic animal products for any purpose from a country,
zone or
compartment not declared free from viral haemorrhagic septicaemia
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GENERAL MANDATE OF THE OIE
General mandate of the OIE:
to improve animal health and welfare worldwide
20
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Fallowing and
disinfection
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Faroese production in tons of Atlantic salmon and rainbow trout
ISA
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What will reduce the chance of
disease - The Faroe Island experience
Single year class. One generation in each fjord
All in – All out
Synchronized fallowing
Safe transportation of fish
No fish transportation between sites
Treatment of processing water and transport water
Safe handling of dead fish
Low fish density (65.000 fish in each 120 m pen)
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Croatian fish farm
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Áreas de
Manejo
Sanitario en la
en la X región
How big zone do we need?
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When is synchronized
fallowing possible?
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Thank you!