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. 2023 Mar;35(1):3-10.
doi: 10.1002/aah.10176. Epub 2023 Mar 10.

First isolation of Carnobacterium maltaromaticum from farmed Rainbow Trout in Virginia

Stephen A Smith  1 , Shelley J Newman  2 , Courtney E Harrison  3 , Thomas P Loch  3   4
Affiliations

First isolation of Carnobacterium maltaromaticum from farmed Rainbow Trout in Virginia

Stephen A Smith et al. J Aquat Anim Health. 2023 Mar.

Abstract

Objective: Carnobacterium maltaromaticum is considered an emerging pathogen of salmonids in the United States and around the world.

Methods: Bacterial cultures obtained from the posterior kidney and skin of moribund Rainbow Trout Oncorhynchus mykiss from a commercial aquaculture facility in Virginia, USA, grew C. maltaromaticum, which was confirmed by additional phenotypic and molecular characterization.

Result: A presumptive diagnosis based on the clinical signs, necropsy observations, histopathology, and bacterial cultures was bacterial septicemia due to C. maltaromaticum.

Conclusion: This represents the first documentation of C. maltaromaticum in Rainbow Trout from Virginia.

Keywords: Carnobacterium maltaromaticum; Oncorhynchus; emerging pathogen; salmonids; trout.

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References

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