Data from them will help establish the prevalence and intensity of the infection. In addition, the remaining twelve wild Magaguadavic broodstock will be non-lethally sampled to see if they test positive for the disease. The use of the well water makes it highly unlikely that this water supply was the source of the infection. Thus, at least one wild fish was infected when it was brought in from the river. The escapees that were tested were all killed as they were removed from the Magaguadavic fish ladder, sealed in an individual plastic bag, and forwarded on the same day to the disease-testing laboratory.
Diseases are a part of the natural world.
Given that many of the pathogens are waterborne, they can travel from one aquaculture site to another, and potentially infect wild animals in their path. ISA is caused by an orthomyxovirus. This type of virus is capable of frequently changing. In salmon, it causes hemorrhages in the kidney and spleen, septicemia, agglutination of the red blood cells, and death. There is no known cure for infected fish.