External & Internal Signs

Diagnosis
Classical Furunculosis derives its name from the boil-like lesions observed by Emmerich and Weibel (1894) on the skin and in the musculature of infected fish. However, development of 'furuncles' on the dorsal body are the exception rather than the rule (Bernoth, 1997b) and, in the experience of this author, only occur in older fish suffering from the chronic form of the disease.

Clinical infection by typical Aeromonas salmonicida.

Salmonid fish species from which typical Aeromonas salmonicida has been isolated.

Additional fish species from which typical Aeromonas salmonicida has been isolated.