title: Hepatic yersiniosis in a cougar (Felis concolor).
abstract: A cougar (Felis concolor) was diagnosed with hepatic yersiniosis by bacterial culture and histopathology. The animal had a 2-week history of anorexia and jaundice before its death. Grossly, the liver exhibited caseo-necrotic foci. Histopathologically, there was necrotizing and suppurative hepatitis, with large numbers of intralesional gram-negative coccobacilli. Additional hepatic lesions included central vein thrombosis, lymphoplasmacytic portal hepatitis, and capsulitis. Yersinia pseudotuberculosis coccobacilli were isolated in pure culture from the hepatic lesions. Because the hepatic lesions in this animal resemble those of other zoonotic diseases, such as plague and tularemia, veterinarians and laboratory personnel who handle samples should take adequate safety precautions. This report is the first to describe the pathology associated with hepatic yersiniosis in a cougar.
authors.affiliation: Animal Disease Diagnostic Laboratory and Department of Veterinary Pathobiology, School of Veterinary Medicine, Purdue University, 406 South University, West Lafayette, IN 47907, USA.
authors.forename: Michael A
authors.initials: MA
authors.lastname: Owston
authors.forename: Ching Ching
authors.initials: CC
authors.lastname: Wu
authors.forename: José A
authors.initials: JA
authors.lastname: Ramos-Vara
mesh_terms: D000818:Animals; D017809:Fatal Outcome; D006651:Histocytochemistry / Q000662:veterinary; D008107:Liver Diseases / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*; D008297:Male; D046011:Puma / Q000382:microbiology*; D015011:Yersinia pseudotuberculosis / Q000302:isolation & purification*; D015012:Yersinia pseudotuberculosis Infections / Q000382:microbiology / Q000473:pathology / Q000662:veterinary*