Fecha/hora: 11/06/2024 16:44:52

Biblioteca(s): | INIA La Estanzuela.
Fecha corriente: | 05/05/2017
Fecha de la última actualización: | 24/06/2021
Autoria: | OLINDA, R. G.; MAIA, L. A.; CARGNELUTTI, J. F.; GOIS, R. C. S.; BATISTA, J. S.; DANTAS, A. F. M.; FLORES, E. F.; RIET-CORREA, F.
Afiliación: | FRANKLIN RIET-CORREA AMARAL, INIA (Instituto Nacional de Investigación Agropecuaria), Uruguay.//Programa de Pós-Graduação, em Medicina Veterinária, Hospital Veterinário, Centro de Saúde e Tecnologia Rural, Universidade Federal de Campina Grande (UFCG), Brasil.
Título: | Swinepox dermatitis in backyard pigs in Northeastern Brazil.
Año de publicación: | 2016
Fuente/Imprenta: | Pesquisa Veterinária Brasileira, Brasília, DF v. 36, n. 6, p. 468-472,  2016.
DOI: | 10.1590/S0100-736X2016000600002
Idioma: | Inglés
Notas: | Article History:Received on June 11, 2015.//Accepted for publication on March 23, 2016. OPEN ACCESS
Contenido: | This article describes five outbreaks of swinepox in backyard pigs in Northeastern Brazil. It affected backyard pigs from herds of poor hygienic-sanitary conditions with severe fly and lice infestations. The morbidity ranged from 33.3 to 100% among affected herds, with mortality reaching up to 60%. The affected pigs developed multifocal to coalescent gray to white papules and blisters in the skin, with eventual eruptions, evolving to erosions and crusts. In addition to skin lesions, affected piglets presented apathy, anorexia and fever. The disease was auto-limiting, resolving within 15 to 25 days. Histological examination revealed proliferative and ulcerative vesiculopustular dermatitis with ballooning degeneration of epithelial cells, perivascular inflammatory infiltrates of lymphocytes, plasma cells, neutrophils, eosinophils and some macrophages in the dermis. Intracytoplasmic eosinophilic inclusions were consistently observed in keratinocytes. Total DNA extracted from fresh tissue fragments obtained from one outbreak and formalin-fixed, paraffin-embedded (FFPE) tissue from the other four outbreaks was submitted to polymerase chain reaction (PCR) for Swinepox virus (SWPV) and Vaccinia virus (VACV). Genetic SWPV material was identified by PCR in fresh material from one outbreak. Nucleotide sequencing and phylogenetic analysis of the PCR amplicons (viral polymerase gene) demonstrated 100% homology with sequences from SWPV. All tissues were PCR negative for VACV. Swine poxvirus is present in backyard pigs in Northeastern Brazil, indicating the need of including SWPV in the differential diagnosis of dermatitis in pigs.
Palabras-Clave: | Doença viral.
Thesagro: | Dermatite; Dermatitis; Poxviridae; Suíno; Swine; Varíola; Viral diseases of animals and humans.
Categoría del tema: | --
URL: | http://www.ainfo.inia.uy/digital/bitstream/item/6764/1/Pesq.-Vet.-Bras.-366p.468-472-2016.pdf
Registro original: | INIA La Estanzuela (LE)
Ejemplares: | LE - (102073-1) - PXI - AP - DD -  -  -  - DIS