1. Infectious pancreatic necrosis virus (IPNV) serotype Sp is prevalent in Turkish rainbow trout farms
- Author
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Soner Altun, Izzet Burcin Saticioglu, Turhan Markussen, Muhammed Duman, Elisabeth F. Hansen, Espen Rimstad, and Ayse Gul Buyukekiz
- Subjects
0301 basic medicine ,Serotype ,Turkey ,viruses ,animal diseases ,Veterinary (miscellaneous) ,Amino Acid Motifs ,Virulence ,Aquaculture ,Aquatic Science ,Biology ,Serogroup ,Virus ,Fish Diseases ,03 medical and health sciences ,Genotype ,Animals ,Amino Acid Sequence ,Infectious pancreatic necrosis virus ,Pathogen ,Phylogeny ,Phylogenetic tree ,Birnaviridae Infections ,Virology ,030104 developmental biology ,Oncorhynchus mykiss ,Rainbow trout - Abstract
Infectious pancreatic necrosis virus (IPNV) is a common pathogen of rainbow trout (Oncorhynchus mykiss) in Turkey. We found that 455 of 1,676 sample pools tested were IPNV positive. Positive samples were found in all geographical regions where sampling was conducted. Sequence and phylogenetic analyses of VP2 from 30 isolates representing all regions showed that the viruses were highly similar in sequence and grouped within Genogroup 5 (serotype Sp-A2). No correlations between sequences, sampling sites or geographical origins were identified. Although clinical disease was evident in several farms, analyses of the amino acid sequence of VP2 showed that all virus strains harboured the P217 T221 motif, assumed to be associated with low virulence. We conclude that IPNV is prevalent in Turkish rainbow trout farms and that the viruses are very homogenous and likely to be of European origin. Frequent exchange of eggs and live fish within the farming industry may explain the homogeneity of the IPNV.
- Published
- 2017
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