| detection of salmonid alphavirus rna in wild marine fish: implications for the origins of salmon pancreas disease in aquaculture. | salmonid alphaviruses (savs), which include the aetiological agents of salmon pancreas disease (spd) in farmed atlantic salmon salmo salar l. and sleeping disease (sd) in rainbow trout oncorhynchus mykiss (walbaum), are significant viral pathogens of european salmonid aquaculture. sav is horizontally transmitted and the virus can survive for extended periods in seawater. a lack of convincing evidence for vertical transmission coupled to the fact that the spd virus (spdv) occurs in historically i ... | 2010 | 21133318 |