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Actinomycosis in a gray four-eyed opossum (Philander opossum) caused by a novel species of Schaalia.
Knoepfler, Stefanie; Schauer, Alexandria; Thomann, Andreas; Feyer, Simon; Rüegg-van den Broek, Peggy; Glardon, Olivier Jean; Kittl, Sonja.
Afiliación
  • Knoepfler S; Institute of Veterinary Bacteriology, Vetsuisse Faculty, University of Bern, 122 Laenggassstrasse, CH-3012, Bern, Switzerland.
  • Schauer A; Institute of Animal Pathology, Vetsuisse Faculty, University of Bern, 122 Laenggassstrasse, CH-3012, Bern, Switzerland.
  • Thomann A; Institute of Veterinary Bacteriology, Vetsuisse Faculty, University of Bern, 122 Laenggassstrasse, CH-3012, Bern, Switzerland.
  • Feyer S; Institute of Veterinary Bacteriology, Vetsuisse Faculty, University of Bern, 122 Laenggassstrasse, CH-3012, Bern, Switzerland.
  • Rüegg-van den Broek P; Papiliorama Foundation, Moosmatte 1, CH-3210, Kerzers, Switzerland.
  • Glardon OJ; Papiliorama Foundation, Moosmatte 1, CH-3210, Kerzers, Switzerland.
  • Kittl S; Institute of Veterinary Bacteriology, Vetsuisse Faculty, University of Bern, 122 Laenggassstrasse, CH-3012, Bern, Switzerland. sonja.kittl@vetsuisse.unibe.ch.
BMC Vet Res ; 17(1): 243, 2021 Jul 13.
Article en En | MEDLINE | ID: mdl-34256761
BACKGROUND: Infective lesions of the jaws and adjacent tissues (lumpy jaw disease, LJD) have been recognized as one major cause of death of captive macropods. Fusobacterium necrophorum and Actinomyces species serve as the main source of LJD in kangaroos and wallabies. Currently, little is reported about LJD or similar diseases in opossums. CASE PRESENTATION: Here we report a case of actinomycosis resembling the entity lumpy jaw disease in a gray four-eyed opossum, caused by a novel species of Schaalia. A 2.8 year old male Philander opossum was presented with unilateral swelling of the right mandible. After an initial treatment with marbofloxacin, the opossum was found dead the following day and the carcass was submitted for necropsy. Postmortem examination revealed severe mandibular skin and underlying soft tissue infection with subsequent septicemia as the cause of death. Histological examination demonstrated Splendore-Hoeppli phenomenon, typically seen in classical cases of actinomycosis. Bacteriology of liver and mandibular mass yielded a previously undescribed species of Schaalia, whose 16 S rRNA gene sequence was 97.0 % identical to Schaalia canis. Whole genome sequencing of the opossum isolate and calculation of average nucleotide identity confirmed a novel species of Schaalia, for which no whole genome sequence is yet available. CONCLUSIONS: The herewith reported Schaalia infection in the gray four-eyed opossum resembling classical actinomycosis gives a novel insight into new exotic animal bacterial diseases. Schaalia species may belong to the normal oral microbiome, as in macropods, and may serve as a contributor to opportunistic infections. Due to the lack of current literature, more insights and improved knowledge about Schaalia spp. and their pathogenicity will be useful to choose appropriate therapy regimens and improve the treatment success rate and outcome in exotic and endangered species.
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Zarigüeyas / Actinomycetaceae / Actinomicosis Límite: Animals Idioma: En Revista: BMC Vet Res Asunto de la revista: MEDICINA VETERINARIA Año: 2021 Tipo del documento: Article País de afiliación: Suiza Pais de publicación: Reino Unido
Texto completo
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Texto completo: 1 Colección: 01-internacional Base de datos: MEDLINE Asunto principal: Zarigüeyas / Actinomycetaceae / Actinomicosis Límite: Animals Idioma: En Revista: BMC Vet Res Asunto de la revista: MEDICINA VETERINARIA Año: 2021 Tipo del documento: Article País de afiliación: Suiza Pais de publicación: Reino Unido