Infectious salmon anemia (ISA) is a viral disease that primarily affects farmed Atlantic salmon. It is caused by the Infectious Salmon Anemia Virus (ISAV), which can lead to severe health issues and high mortality rates in infected fish. Symptoms include lethargy, pale gills, and swelling, making it a significant concern for the aquaculture industry. The disease is spread through direct contact between fish and contaminated water or equipment. Effective management strategies, such as vaccination and biosecurity measures, are essential to control outbreaks and protect fish populations. Early detection and reporting are crucial for minimizing the impact of ISA on salmon farming.