Acute death associated with Citrobacter freundii infection in an African elephant ( Loxodonta africana ) - INRAE - Institut national de recherche pour l’agriculture, l’alimentation et l’environnement Accéder directement au contenu
Article Dans Une Revue Journal of Veterinary Diagnostic Investigation Année : 2015

Acute death associated with Citrobacter freundii infection in an African elephant ( Loxodonta africana )

Joaquín Ortega
  • Fonction : Auteur
Juan Corpa
  • Fonction : Auteur
José Orden
  • Fonction : Auteur
Jorge Blanco
  • Fonction : Auteur
María Carbonell
  • Fonction : Auteur
Amalia Gerique
  • Fonction : Auteur
Erin Latimer
  • Fonction : Auteur
Gary Hayward
  • Fonction : Auteur
Andreas Roemmelt
  • Fonction : Auteur
Thomas Kraemer
  • Fonction : Auteur
Aurore Romey
Labib Kassimi
Miguel Casares
  • Fonction : Auteur

Résumé

A 21-year-old male African elephant ( Loxodonta africana) died suddenly with no previous medical history. Grossly, there were severe multifocal epicardial and endocardial hemorrhages of the atria and ventricles, hydropericardium, multifocal pleural hemorrhages, and severe pulmonary congestion and edema. Histologically, there was fibrinoid vasculitis and thrombosis in the heart and lung and myocardial necrosis. Citrobacter freundii was isolated in abundance in pure culture from liver and heart samples. Low levels of multiples types of elephant endotheliotropic herpesvirus (EEHV-6, EEHV-2B, and EEHV-3A) were detected in spleen samples, but not in heart samples. The levels of EEHV DNA found were much lower than those usually associated with acute EEHV hemorrhagic disease, and many other genomic loci that would normally be found in such cases were evidently below the level of detection. Therefore, these findings are unlikely to indicate lethal EEHV disease. Polymerase chain reaction for encephalomyocarditis virus (EMCV) and toxicology for oleander ( Nerium oleander) were negative. Stress, resulting from recent transport, and antimicrobial therapy may have contributed to the death of this animal.

Dates et versions

hal-03941597 , version 1 (16-01-2023)

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Citer

Joaquín Ortega, Juan Corpa, José Orden, Jorge Blanco, María Carbonell, et al.. Acute death associated with Citrobacter freundii infection in an African elephant ( Loxodonta africana ). Journal of Veterinary Diagnostic Investigation, 2015, 27 (5), pp.632-636. ⟨10.1177/1040638715596034⟩. ⟨hal-03941597⟩
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