Seropositive Wild Boars Suggesting the Occurrence of a Wild Cycle of Trichinella spp. in Brazil

Trichinella is a zoonotic nematode traditionally detected worldwide in both domestic and wild animals. In South America, along with the occurrence of this parasite in domestic pigs and wild boars, there are reports of infection in wild carnivores. Brazil is considered free of the domestic cycle of T...

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Detalhes bibliográficos
Autores: Silva, Carolina S. [UNESP], Mendonça, Talita O. [UNESP], Machado, Dália M. R. [UNESP], Arias-Pacheco, Carmen A. [UNESP], Oliveira, Wilson J. [UNESP], Perin, Patricia P. [UNESP], Werther, Karin [UNESP], Carraro, Paulo E. [UNESP], Trevisol, Iara M., Kramer, Beatris, Silva, Virgínia S., Mathias, Luis A. [UNESP], Bürger, Karina P. [UNESP], Lux Hoppe, Estevam G. [UNESP]
Formato: artículo
Estado:Versión publicada
Fecha de publicación:2022
País:Brasil
Recursos:Universidade Estadual Paulista (UNESP)
Repositorio:Repositório Institucional da UNESP
Idioma:inglés
OAI Identifier:oai:repositorio.unesp.br:11449/230362
Acesso em linha:http://dx.doi.org/10.3390/ani12040462
http://hdl.handle.net/11449/230362
Access Level:acceso abierto
Palavra-chave:Artificial digestion
IELISA
Trichinella spp
Wild boars
Wild carnivores
Descrição
Resumo:Trichinella is a zoonotic nematode traditionally detected worldwide in both domestic and wild animals. In South America, along with the occurrence of this parasite in domestic pigs and wild boars, there are reports of infection in wild carnivores. Brazil is considered free of the domestic cycle of Trichinella, but there is unpublished serological evidence of infection in wild boars, which changed the Brazilian status in OIE regarding the disease after an official communication. We investigated Trichinella spp. infection in wild boars and wild carnivores in the Southeastern region of Brazil. A total of 136 samples were tested, 121 from wild boars and 15 from wild carnivores. Artificial enzymatic digestion (AED) tests were performed on muscle samples from 37 wild boars and 15 wild carnivores, and 115 serum samples from wild boars were tested by iELISA. Seven serum samples from wild boars tested positive (7/115 = 6.1%, 95% CI 3.0–12.0), but no larvae were found in the AED. There was no significant difference between sex, age, and location of the samples. The serological results suggest that a wild cycle of Trichinella spp. may occur in Brazil, but further analyses should be performed to confirm the presence of the parasite.

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