report on the last outbreak of infectious salmon anaemia ... · the nfsa visits the farm and...

Report on the last outbreak of Infectious Salmon Anaemia

(ISA) in Norway

SCFCAH 05.03.2013

Stian JohnsenSenior Adviser

Declarations of ISA-free compartments and zone:

Nofima – Hall 3

Tveitevåg – Marine Harvest

Daumannsvika, Salten, ISA-outbreak 30.Jan. 2013

633 km

Rafdal – Marine Harvest

ISA - outbreak

Infected site - Daumansvika

• Broodfish farm.• 530.000 Atlantic Salmon distributed in

seven net pens. • Average weight; 4,3 kg.• 0,18 % mortality in January (943 fish)• No other sites within a distance of 5 km. • The fish originated from a Category 1

area.

Measures

• The outbreak is handled in accordance with the requirements of Directive 2006/88 implemented by The Norwegian Contingency plan approved by the EFTA Surveillance Authority 05. July 2012.

ISA-outbreak, Salten, Nordland

17 January 30 January

Suspicion of diseases in one of the net pens with the following symptoms; severe haemorrhages increased appetite and chronic circulation failure.

The fish health service suspected cardiomyopathy syndrome (CMS)/heart and skeletal muscle inflammation (HSMI)

• NVI confirms that the samples are positiv for ISA. 4 out of 5 fish positive by Immunohistochemistry (IHC) according to the OIE Manual.

• The Norwegian Food Safety (NFSA) is immediately notified about the diagnosis from the NVI and the fish health service.

Samples sent to the National Veterinary Institute (NVI).

• Restrictions on the farm; No fish are allowed to enter or leave the farm.

• All neighbouring farms informed f th i i

ISA-outbreak, Salten, Nordland

1 February 4 February

The NFSA visits the farm and initiates epizootic investigations according to Article 28 of Directive 2006/88. Additional samples are collected for analyses at the NVI.

The NFSA visits the farm evaluate whether the criteria for conformation of diagnosis are met and to collect additional samples. The NFSA receives a plan for removal of fish from the farm (destruction of fish from the affected pen and slaughter of the rest). The farm must be emptied within 7 March.

ISA-outbreak, Salten, Nordland

5 February 13 February

• Diagnosis confirmed by the NFSA. • The ISA- free status of the compartment

suspended. • Outbreak notified to the EU and the OIE.

The NFSA adopts the regulations on the containment area.

Implementing: •Strict access control to the farm•Requirements on transport•Disinfection requirements •Deadline for the removal of all fish from the farm: 7. March 2013

Slaughter of fish from the farm begins.

Containment areaprotection zone (red) & suveillance zone (yellow):

Infected farmISA-free com

partment

Article 29: Epizootic investigation

• Seems to be a primary outbreak• Low mortality• No spread to other farms in the area

Thank you for your attention