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Infectious Salmon Anaemia Outbreak in Norway

21 May 2015, at 1:00am

NORWAY - There has been an outbreak of infectious salmon anaemia (ISA) on a fish farm in Norway.

The outbreak occurred in a susceptible population of 23000 Atlantic salmon.

There were 1060 deaths out of 1100 cases of the disease. The other 40 infected animals were destroyed as a preventative measure.

From an epidemiological point of view, the Norwegian Food Safety Authority considers the ISA outbreak at Nystølvågen-24495 to be a first occurrence within this ISA free area.

They said that based on the genotyping of the complete ISA virus segment 6, it seems to be an isolated outbreak.

The outbreak, in a semi-open production system, occurred in the Hordaland county of Norway.

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The Health and Welfare of Atlantic Salmon.

It is vital that fish farm operatives who are responsible for farmed fish are trained in their health and welfare. This will help to ensure that fish are free from disease and suffering whilst at the same time promote good productivity and comply with legislation.

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