chinook salmon disease
infectious haematopoietic necrosis (an acute Rhabdovirus-group viral disease of salmonids transmitted from fish to fish and by eggs in western North America, e.g. in chinook and sockeye salmon and rainbow trout. The disease destroys the haemotopoietic tissues in the kidney and spleen. Fish become lethargic or hyperactive, dark in colour, develop popeyes, anaemia (pale gills) and a swollen belly, and produce faecal casts. Haemorrhages on the skin, viscera and fins occur. Particularly affects fish less than 5 cm long in water below 10°C with high mortality. Potentially dangerous to humans. Abbreviated as IHN)

Dictionary of ichthyology. 2009.

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