Pathology of Infection
Clinical indications of infection in salmons include lethargy, loss of body mass, darkening of the skin, ascites, exopthalmia and kidney pustules, These symptoms vary from one salmonid species to another, and also depend on life stage of the host.
Internally, infection with C. shasta affects entire digestive tract, liver, gall bladder, spleen, gonads, kidney, heart, gills, and muscle tissues. Infection with C. shasta in adult chinook salmon causes mortality through intestinal perforations and co-occurring bacterial infections.
Cold temperatures and salinity may reduce progress of disease, but do not eliminate infection. Progression of infection and mortality is temperature dependent, with higher temperature increasing disease progression and resulting in quicker mortality.
Read more about this topic: Ceratomyxa Shasta
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