Fecha/hora: 01/06/2024 19:12:57

Biblioteca(s): | INIA La Estanzuela.
Fecha corriente: | 20/01/2022
Fecha de la última actualización: | 18/03/2022
Autoria: | CLOTHIER, K.A.; WATSON, K.D.; METE, A.; GIANNITTI, F.; ANDERSON, M.; MUNK, B.; MCMILLIN, S.; CLIFFORD, D.L.; RUDD, J.; SHIRKEY, N.; FAMINI, D.; WOODS, L.
Afiliación: | KRISTIN A. CLOTHIER, California Animal Health and Food Safety Laboratory System, University of California-Davis, CA, USA.; KATHERINE D. WATSON, California Animal Health and Food Safety Laboratory System, University of California-Davis, CA, USA.; ASLI METE, California Animal Health and Food Safety Laboratory System, University of California-Davis, CA, USA.; FEDERICO GIANNITTI, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay; California Department of Fish and Wildlife, Rancho Cordova, CA, USA.; California Department of Fish and Wildlife, Rancho Cordova, CA, USA.; California Department of Fish and Wildlife, Rancho Cordova, CA, USA.; California Department of Fish and Wildlife, Rancho Cordova, CA, USA.; California Department of Fish and Wildlife, Rancho Cordova, CA, USA.; California Department of Fish and Wildlife, Rancho Cordova, CA, USA.; DAN FAMINI, Sonoma County Wildlife Rescue, Petaluma, CA, USA.; LESLIE WOODS, California Animal Health and Food Safety Laboratory System, University of California-Davis, CA, USA.
Título: | Generalized dermatophytosis caused by Trichophyton equinum in 8 juvenile black bears in California.
Año de publicación: | 2022
Fuente/Imprenta: | Journal of Veterinary Diagnostic Investigation, 2022, Volume 34, Issue 2, pp.279-283. doi: https://doi.org/10.1177/10406387211061143
DOI: | 10.1177/10406387211061143
Idioma: | Inglés

Contenido:

Abstract. From 2014?2019, 8 juvenile black bears (Ursus americanus) from different geographic regions were presented to the California Department of Fish and Wildlife because of emaciation, alopecia, and exfoliative dermatitis that resulted in death or euthanasia. Autopsy and histopathology revealed that all 8 bears had generalized hyperkeratotic dermatitis, folliculitis, and furunculosis. Skin structures were heavily colonized by fungal hyphae and arthrospores; fungal cultures of skin from 7 bears yielded Trichophyton equinum, a zoophilic dermatophyte reported only rarely in non-equid species. Additional skin conditions included mites (5), ticks (2), and coagulase-negative Staphylococcus sp. infections (2). No other causes of morbidity or mortality were identified. Molecular comparisons performed at the University of Texas Fungal Reference Laboratory determined that all isolates produced identical banding patterns, potentially representing a clonal population. 
Dermatophytosis is commonly localized and limited to the stratum corneum of the epidermis and hair follicles. Generalized disease with dermal involvement is rare in immunocompetent individuals; illness, malnutrition, age, or immunosuppression may increase susceptibility. Underlying causes for the severe disease impact in these bears were not evident after physical or postmortem examination. The mechanism by which bears from different geographic locations had severe, T. equinum?associated dermatophytosis from a potentially clonal dermatophyte could not be explained and warrants further investigation.

Palabras-Clave: | Bears; Dermatophytosis; PLATAFORMA DE INVESTIGACIÓN EN SALUD ANIMAL; PLATAFORMA DE SALUD ANIMAL; Trichophyton equinum; Ursus americanus.
Categoría del tema: | --
Registro original: | INIA La Estanzuela (LE)
Ejemplares: | LE - (103477-1) - PXI - AP - DD - PP/JVet.Diag.Inve/2022 -  -  - DIS