First report of infectious spleen and kidney necrosis virus in Nile tilapia in Brazil

Registro completo de metadados
MetadadosDescriçãoIdioma
Autor(es): dc.creatorFigueiredo, Henrique César Pereira-
Autor(es): dc.creatorTavares, Guilherme Campos-
Autor(es): dc.creatorDorella, Fernanda Alves-
Autor(es): dc.creatorRosa, Júlio César Câmara-
Autor(es): dc.creatorMarcelino, Sóstenes Apolo Correia-
Autor(es): dc.creatorPierezan, Felipe-
Autor(es): dc.creatorPereira, Felipe Luiz-
Data de aceite: dc.date.accessioned2026-02-09T11:59:28Z-
Data de disponibilização: dc.date.available2026-02-09T11:59:28Z-
Data de envio: dc.date.issued2022-04-19-
Data de envio: dc.date.issued2023-06-27-
Data de envio: dc.date.issued2022-04-19-
Data de envio: dc.date.issued2023-06-27-
Data de envio: dc.date.issued2020-
Fonte completa do material: dc.identifierhttps://repositorio.ufla.br//handle/1/57355-
Fonte completa do material: dc.identifierhttps://onlinelibrary.wiley.com/doi/10.1111/tbed.14217-
Fonte: dc.identifier.urihttp://educapes.capes.gov.br/handle/capes/1151953-
Descrição: dc.descriptionIn June 2020, an atypical fatal outbreak in a Brazilian Nile tilapia farm was investigated. Twenty-three animals were collected and different tissues were used for bacterial isolation, histopathological and electron microscopic examination and viral detection using molecular methods. A large number of megalocytes were observed in the histopathological analysis of several tissues. Icosahedral virions, with a diameter of approximately 160 nm, were visualized inside the megalocytes through transmission electron microscopy of the spleen tissue. The virions were confirmed to be infectious spleen and kidney necrosis virus (ISKNV) through PCR and sequencing analyses of the fish samples. Phylogenetic analysis indicated that the virus belongs to the Clade 1 of ISKNV. This viral pathogen is associated with high mortality in the early stages of cultured Nile tilapia in the United States, Thailand and Ghana; however, until now, there have been no reports from ISKNV affecting cultured fish in Brazil. Additionally, in 14 out of 23 sampled fish, Streptococcus agalactiae, Edwardsiella tarda or Aeromonas hydrophila infections were also detected. This is the first report of fatal ISKNV infections in the Brazilian Nile tilapia fish farms and represents a new challenge to the aquaculture sector in the country.-
Idioma: dc.languageen-
Publicador: dc.publisherWiley-
Direitos: dc.rightsrestrictAccess-
???dc.source???: dc.sourceTransboundary and Emerging Diseases-
Palavras-chave: dc.subjectBrazilian Nile tilapia farm-
Palavras-chave: dc.subjectInfectious Spleen and Kidney Necrosis Virus (ISKNV)-
Título: dc.titleFirst report of infectious spleen and kidney necrosis virus in Nile tilapia in Brazil-
Tipo de arquivo: dc.typeArtigo-
Aparece nas coleções:Repositório Institucional da Universidade Federal de Lavras (RIUFLA)

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