Investigation of a disease occurring among Rocky mountain whitefish in the Elk river, 1931, and among hybrid Pacific salmon in a retaining pond at Cultus lake, 1932, showed similar pathological features in each epizootic. An easily cultivable bacterium, producing a brown diffusible pigment on nutrient agar, was isolated in pure and in nearly pure culture from lesions of typical cases in each outbreak. Experimental inoculation into goldfish and chub have established the pathogenic nature of the microorganism, and its relationship to the lesions described. No bacterium corresponds in all cultural and biochemical features with Bacillus salmonicida Emmerich and Weibel. The disease in each locality presents the pathological picture typical of "furunculosis."
scite is a Brooklyn-based organization that helps researchers better discover and understand research articles through Smart Citations–citations that display the context of the citation and describe whether the article provides supporting or contrasting evidence. scite is used by students and researchers from around the world and is funded in part by the National Science Foundation and the National Institute on Drug Abuse of the National Institutes of Health.