Mycobacteriosis in a Bull Trout from Hungry Horse Reservoir, MontanaVolume 18, No. 1-4, 2012 • Manuscript
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Terrazas, Marc M., Rosenthal, Leo R., Staigmiller, Kenneth D., Snekvik, Kevin R., Bradway, Daniel S.
bull trout, Environmental science, fish, environment, infection, flathead, living nature, nature & environment, state university, Kalispell, fish wildlife parks, Microbiology, Pathology, bacteria, acid fast bacilli, animals, mycobacterium, bacteriology, corynebacterineae, bacterial diseases, nontuberculous mycobacteria, College of Veterinary Medicine, Washington State University, Department of Veterinary Microbiology and Pathology, MFWP Fish Health Lab, Fish Health Lab, Gibson Laboratories, Washington Animal Disease Diagnostic Laboratory, Pullman, Becton Dickinson, Qiagen, GenBank, M. Trucksis A.S., graded ethanol processing, 1000x using oil immersion, Potential applications, diagnostic algorithm, Reservoir, Lexington, Valencia, Hercules, South Plainfield, Washington, London, Journal of Clinical Microbiology, The Veterinary Journal, Journal of Bacteriology, Nucleic Acids Research, horse reservoir, hungry horse, mycobacterium fortuitum, hungry horse reservoir, hungry horse reservoir montana, trout hungry horse reservoir, bull trout hungry horse, mycobacteriosis bull trout hungry, Mycobacteriosis, liver, granulomas, kidney, spleen, South Fork Flathead, DNA, rRNA, gram positive, acid-fast bacteria, macrophages, hepatocytes, Kinyoun's, Cory Schneigert, Dave Stagliano, Phillip Sawatzki, gill net
An angler-caught bull trout (Salvelinus confluentus) from Hungry Horse Reservoir, MT with noticeably poor condition was examined to reveal liver nodules. Further investigation discovered acid-fast bacteria present in these granulomas making this a unique finding requiring further diagnostics. Molecular diagnostics revealed the infectious agent to be Mycobacterium fortuitum. This is a range and species expansion for this pathogen in fish. Further examination of additional fish from this water body did not reveal cases similar to this one, allowing for the possibility of this being a lone occurrence.
Terrazas, M. M., Rosenthal, L. R., Staigmiller, K. D., Snekvik, K. R., & Bradway, D. S. 2012. Mycobacteriosis in a Bull Trout from Hungry Horse Reservoir, Montana. Intermountain Journal of Sciences 18(1-4): 20-25.