Comparative Study of Different Methods for Viral Nervous Necrosis (VNN) Diagnosis in Fish

The consumption of fish as useful animal protein is on the rise around world, and transport being considered a means trade between countries world. Every year, occurrence Viral Necrosis Virus (VNN) disease in fish, their main host, causes great damage to fisheries industry. Undoubtedly, one ways succeed aquaculture industry future will be rapid diagnosis prevention aquatic diseases, which are currently biggest cause losses Failure definitively diagnose pathogen animals has led an increase use antibiotics and, while it may not lead definitive treatment, also development drug resistance. Therefore, prolonging time identification more prevalence disease, damages farms resulting costs. OIE documents various pieces evidence introduce valid tools methods betanodavirus that can used according type sample available facilities. In this regard, selection method make significant contribution improving control, prevent combat spread worldwide disease. purpose study compare different VNN evaluate advantages disadvantages.