Infectious Salmon Anemia is a highly contagious viral disease of Atlantic salmon that caused by the causative agent ISA virus. This single stranded RNA, enveloped orthomyxovirus causes internal bleeding and death. The disease is spread through fish-to-fish contact and contaminated water. The mortality rate may be high, causing significant economic loss.
Where Atlantic salmon are farmed in the United States, Canada and parts of Europe.
There is no specific treatment for Infectious Salmon Anemia. Any fish suspected of having Infectious Salmon Anemia should be reported to the State Veterinarians or USDA Area Veterinarian in Charge immediately.
The spread of Infectious Salmon Anemia may be prevented by adopting sound biosecurity practices.
Infectious Salmon Anemia is not a public health threat.