CORYNEBACTERIAL DISEASE
bacterial kidney disease (a bacterial infection with Renibacterium salmoninus or Corynebacterium sp. affecting salmonids, usually when temperatures are falling. The disease may be chronic or acute and has no treatment. Causes swelling of internal organs (oedematous, grey and corrugated kidneys with off-white lesions) and haemorrhages. Lesions may occur also in the liver and spleen and muscle contractions occur. External symptoms may be absent or include exophthalmy, skin darkening, abdominal swelling, and skin ruptures and vesicles. Also called Dee\'s disease and kidney disease)