RESUMO
In this paper, the authors review the impacts of diseases facing salmon aquaculture, drawing lessons from terrestrial animal diseases. They discuss the implementation of current control strategies, taking into account transmission patterns (vertical versus horizontal), disease reservoirs, and interactions with wild fish. In addition, the decision-making context of aquatic disease control and the institutional organisation of control strategies are considered, with particular emphasis on the roles and responsibilities of regulatory authorities and the private sector. Case studies on the emergence and control of infectious salmon anaemia worldwide and pancreas disease in Norway are used to examine some of the controversies that may influence decision making and provide lessons for the future.