A systematic surveillance programme for infectious salmon anaemia virus supports its absence in the Pacific Northwest of the United States - Gustafson, Lori; Creekmore, Lynn; Snekvik, Kevin; Ferguson, Jayde; Warg, Janet; Blair, Marilyn; Meyers, Theodore; Stewart, Bruce; Warheit, Kenneth; Kerwin, John; Goodwin, Andrew; Rhodes, Linda; et al. (Journal of Fish Diseases, 2018)