Infection with salmonid aplhavirus

Last Modified: Fri, 23 Jun 2023 11:30:27 IST
Disease name Infection with salmonid aplhavirus
Animal Health Law Category if applicable N/A
Species affected Fish
Description Caused by infection with any one of the 6 genotypes of the pathogenic agent Salmonid alphavirus which is an enveloped spherical single stranded RNA virus. Farmed Atlantic Salmon and Rainbow Trout are seen to be the main reservoir of Salmonid alphavirus though other species such as Common Dab and Arctic Char are also affected. This virus affects mainly the heart and pancreas leading to either pancreatic disease or sleeping disease. Sudden drops in appetite can be observed before clinical symptoms are seen. Fish are seen swimming slowly at the top of the water but occasionally extremely weak ‘sleeping’ fish are found at the bottom or in net cages. As their outbreak progresses poor body condition scores can be observed.
Status in Ireland Present
Date of Last known case of disease in Ireland N/A
DAFM Division Responsible The Marine Institute
Link to relevant external website
Notifiable in Ireland No
WOAH Listed Yes