Using the Code Brit Hjeltnes

Aquatic Animal Health Standards Commission

The OIE

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

Viral Haemorrhagic Septicaemia

(VHS)

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

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

3. Preliminary control zone - VHS

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.

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

Destruction of fish at the infected site

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

GENERAL MANDATE OF THE OIE

General mandate of the OIE:

to improve animal health and welfare worldwide

20

Fallowing and

disinfection

Faroese production in tons of Atlantic salmon and rainbow trout

ISA

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)

Croatian fish farm

Áreas de

Manejo

Sanitario en la

en la X región

How big zone do we need?

When is synchronized

fallowing possible?

Thank you!