2021
DOI: 10.1002/aah.10124
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Mycobacterium salmoniphilum and M. chelonae in Captive Populations of Chinook Salmon

Abstract: Chinook Salmon Oncorhynchus tshawytscha is a keystone fish species in the Pacific Northwest. In 2019, unusual mortalities occurred in two different populations of cultured fingerlings from the same facility in California, USA. The systems consist of outdoor, enclosed, flow‐through freshwater tanks that are maintained at 18 ± 1°C. Clinical signs and gross findings were only observed in one population and included abnormal swimming, inappetence, lethargy, skin discoloration, and the presence of multifocal nodula… Show more

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Cited by 4 publications
(2 citation statements)
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“…Most of the cases were chronic and showed good agreement with other published descriptions of chronic mycobacteriosis in fish (Delghandi et al, 2020; Hashish et al, 2018; Jacobs et al, 2009; Nguyen et al, 2021; Sandlund et al, 2023; Zerihun et al, 2011). Four of the cases were different and showed histopathological changes consistent with septicemia with large amounts of mycobacteria in blood vessels and various tissues.…”
Section: Discussionsupporting
confidence: 86%
“…Most of the cases were chronic and showed good agreement with other published descriptions of chronic mycobacteriosis in fish (Delghandi et al, 2020; Hashish et al, 2018; Jacobs et al, 2009; Nguyen et al, 2021; Sandlund et al, 2023; Zerihun et al, 2011). Four of the cases were different and showed histopathological changes consistent with septicemia with large amounts of mycobacteria in blood vessels and various tissues.…”
Section: Discussionsupporting
confidence: 86%
“…Infections with M. chelonae may affect both immunocompromised and immunocompetent patients (6). The pathogen is an environmental saprophyte and has been found in soil, water, and aquatic animals and plants (7)(8)(9)(10).…”
Section: Introductionmentioning
confidence: 99%