100 deaths were caused by the virus in a susceptible population of 1000 trout.
In order to eradicate infectious haematopoietic necrosis on the fish farm, depopulation, disposing of infected and dead fish, washing, cleaning and final disinfection took place following the discovery of the disease.
Sampling and testing of susceptible wild fish, originating both upstream and downstream of the infected farm, was also conducted with negative results.
The outbreak occurred near Croatia's border with Slovenia.
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