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1.
J Wildl Dis ; 55(4): 804-811, 2019 10.
Artículo en Inglés | MEDLINE | ID: mdl-31112466

RESUMEN

We performed postmortem examinations on seven Misaki feral horses (Equus caballus) and evaluated Misaki feral horses, Japanese wild boars (Sus scrofa leucomystax), domestic pigs (Sus scrofa), and wild Japanese macaques (Macaca fuscata fuscata) from 2015 to 2017 in Cape Toi, Kushima, Miyazaki Prefecture, southern Japan, for antibodies against Japanese encephalitis virus (JEV). Strongylus vulgaris infection with severe arterial lesions and hemomelasma ilei was present in all necropsied horses. We frequently found intestinal ulcers, perihepatitis filamentosa, and poor body condition. We recorded degenerative arthropathy in metacarpophalangeal joints in two cases and a fracture of the rib with diaphragmatic rupture in one case. A total of 73% (177/242) of horses were seropositive for JEV as tested by hemagglutination inhibition (HI). The HI data also revealed that 74% (59/80) of the wild boars, 67% (60/90) of the pigs, and 29% (22/75) of the wild monkeys were seropositive for JEV. Our findings showed that Strongylus spp. are still a risk to horses in this region, and that environmental factors such as topographic location of the pasture and steep slope may have caused of degenerative arthropathy and bone fracture. Our results showed that JEV is endemic in Japan. The wild boars and pigs were presumed to act as strong amplifiers and sources of infection, with subsequent risk to humans.


Asunto(s)
Anticuerpos Antivirales/sangre , Virus de la Encefalitis Japonesa (Especie)/inmunología , Encefalitis Japonesa/veterinaria , Enfermedades de los Caballos/virología , Animales , Encefalitis Japonesa/virología , Femenino , Enfermedades de los Caballos/epidemiología , Caballos , Japón/epidemiología , Masculino , Estudios Seroepidemiológicos
2.
J Comp Pathol ; 155(2-3): 263-266, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27421619

RESUMEN

A 9-year-old male red panda (Ailurus fulgens) became emaciated and died. Necropsy examination revealed systemic lymphadenomegaly. The liver, lungs and left kidney contained multifocal yellow nodules. Microscopical examination revealed granulomatous inflammation in the liver, lungs, kidney, spleen and lymph nodes, with numerous acid-fast bacilli. Sequencing of genetic material isolated from the tissues classified the pathogen as Mycobacterium gastri. Lymphoma was found in the liver, lungs, kidney and lymph nodes. The neoplastic cells were strongly labelled for expression of CD3, Ki67 and proliferating cell nuclear antigen by immunohistochemistry. This is the first report of M. gastri infection with T-cell lymphoma in a red panda.


Asunto(s)
Ailuridae , Linfoma de Células T/veterinaria , Infecciones por Mycobacterium/veterinaria , Ailuridae/microbiología , Animales , Animales de Zoológico/microbiología , Masculino , Mycobacterium
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