First isolation of Carnobacterium maltaromaticum from farmed Rainbow Trout in Virginia
Stephen A Smith1, Shelley J Newman2, Courtney E Harrison3
1Department of Biomedical Sciences and Pathobiology, Virginia-Maryland College of Veterinary Medicine, Virginia Tech, Blacksburg, Virginia, 24061, USA.
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.
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