Infectious Haematopoietic Necrosis Flashcards

Question	Answer		Article
How do infected fish shed IHN?	Faeces Urine Sexual fluids Mucus		Link to Article
What type of fish are affected by IHN?	Salmonid type fish including various salmon and trout species.		Link to Article
What are the typical clinical signs?	Pop-eye appearance Darkened skin and fins with petechial haemorrhages Abdominal distension Erratic behaviour Casts trailing from the vent		Link to Article
In what fish is mortality highest?	Yolk sac fry and fish <2months old		Link to Article
What is the fastest diagnostic test and what is its main downfall?	Staphylococcal agglutination – takes 15 minutes Is insensitive		Link to Article
What is the pathognomic histological feature of IHN?	Degenerate necrosis of cells in the lamina propria and other layers of the gastrointestinal mucosa		Link to Article