Abstract
Through a regular clinical control of one Croatian rainbow trout (Oncorhynchus mykiss) farm, aberrant fry behaviour has been revealed, whereas diagnostic protocols of sampled fish evidenced infectious pancreatic necrosis virus (IPNV) presence. Identification of IPNV type isolated from the source farm was necessary to develop adequate epizootiological survey at the country level, moreover since a previous IPNV outbreak and virus molecular characterization was reported only on one occasion. Amplification of a 359-bp fragment (GenBank HM036118) of the capsid protein VP2 variable region, supported the hypothesis of the European origin of isolate that clusters within III genogroup, belonging to A2 serotype, although showing distinction from the previously reported strain.
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