Until 1985, Spain had no state or private laboratories available where accurate diagnosis of fish virus diseases could be performed and samples had to be sent to other European Ichthyopathology Laboratories. In 1985, in the Animal Virology Department of the National Institute for Agricultural Research (INIA), the adaptation of specific techniques for fish diseases diagnosis was established, so creating the first National Ichthyopathology Laboratory in Spain.
The salmonid viral diseases Viral Hemorrhagic Septicemia (VHS) and Infectious Pancreatic Necrosis (IPN) are well known in Europe. The staff of Ichthyopathology of INIA have detected their presence in Spain in several fish farms, over the last two years.
The authors comment on some of these findings and also, in the light of their experience, on aspects of the methodology of diagnosing IPN and VHS.