Publication Abstract

Title
Alphavirus infections in trout
Publication Abstract

Alphavirus infections in trout

S. W. Feist and R. K. Paley

Alphavirus infections in farmed salmonids have emerged since the 1990s as serious pathogens in farmed Atlantic salmon and rainbow trout. There are three main diseases caused by six recognised subtypes of virus in the Alphavirus genus of the family Togaviridae. SAV subtypes 1, 4, 5 & 6 are the causative agents of pancreas disease affecting farmed Atlantic Salmon. Sleeping disease is caused by SAV subtype 2 (SAV 2) and affects farmed rainbow trout in several European countries including France, Ireland, Scotland, Italy and Spain with occasional reports from other countries. In recent years Norwegian salmon alphavirus (SAV 3) has been recognised as an additional subtype causing pancreas disease Atlantic salmon and rainbow trout mariculture. Mortality associated with these infections can be significant and clinical signs are generally inappetance and lethargy, the latter in particular a feature of sleeping disease. This presentation provides an overview of SAV infections, including occurrence, pathogenesis, diagnostic methods and current approaches to control.

 
Publication Internet Address of the Data
Publication Authors
S. W. Feist and R. K. Paley
Publication Date
May 2012
Publication Reference
Conference of the Italian Society of Fish Disease (SIPI), Udine, Italy. Seminar: "Sustainability, health, food quality and safety in the production of rainbow trout"
Publication DOI: https://doi.org/