In a quest to unravel the mysteries behind the ever-changing virulence of the Infectious Salmon Anemia virus (ISAV), researchers at the section for Aquaculture biosecurity at Norwegian Veterinary Institute Ås, embarked on an exciting initiative to dive deep into the intricate world of ISAV, by exploring the nuances in virulence, disease development, and outcomes between historical and newer isolates.
The team, led by Simon Weli and Sonal Patel, carried out infection trial in Atlantic salmon, using 11 carefully selected ISAV field isolates, which were obtained from different outbreaks spanning the timeline from 2013 to 2022. The challenge trial, which took seven week (from October 23 – December 4), was performed at the new state of the art salmon facility (FISH- VET) at NMBU Ås.
The transmission study in Atlantic salmon, will unveil potential differences in virulence, and the very essence of fish pathology. It will help to pinpoint ISAV virulence markers that hold the key to ISAV’s behavior and spread in the farms.
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