1. Pyogranulomatous enteritis and mesenteric lymphadenitis in an adult llama caused by Rhodococcus equi carrying virulence-associated protein A gene.
- Author
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Löhr CV, O'Neill TW, Daw DN, Pitel MO, and Schlipf JW
- Subjects
- Actinomycetales Infections microbiology, Animals, Animals, Domestic, Bacterial Proteins analysis, Enteritis microbiology, Male, Mesenteric Lymphadenitis microbiology, Oregon, Rhodococcus equi genetics, Rhodococcus equi pathogenicity, Virulence Factors, Actinomycetales Infections veterinary, Camelids, New World, Enteritis veterinary, Mesenteric Lymphadenitis veterinary, Rhodococcus equi isolation & purification
- Abstract
We report herein Rhodococcus equi infection in an 11-y-old, male llama with a history of diarrhea and endoparasitism. Postmortem examination revealed granulomatous and ulcerative enteritis, pyogranulomatous mesenteric lymphadenitis, fibrinosuppurative peritonitis, and granulomatous hepatitis. Intralesional macrophages were laden with gram-positive cocci. Bacteriology identified R. equi , and cultures tested positive for R. equi choE and vapA genes by PCR. This case expands the reported spectrum of lesions associated with R. equi infections in llamas from pyogranulomatous bronchopneumonia and peripheral lymphadenitis to pyogranulomatous mesenteric lymphadenitis and enteritis. We also link a R. equi that is carrying the virulent-associated protein gene VapA to clinical disease in New World camelids.
- Published
- 2019
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