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Prevalence, O-genotype and Shiga toxin (Stx) 2 subtype of Stx-producing Escherichia coli strains isolated from Argentinean beef cattle.
Okuno, Kentaro; Awasthi, Sharda Prasad; Kopprio, Germán A; Iguchi, Atsushi; Hatanaka, Noritoshi; Hinenoya, Atsushi; Lara, Rubén José; Yamasaki, Shinji.
Afiliação
  • Okuno K; Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58, Rinkuourai-kita, Izumisano, Osaka 598-8531, Japan.
  • Awasthi SP; Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58, Rinkuourai-kita, Izumisano, Osaka 598-8531, Japan.
  • Kopprio GA; Asian Health Science Research Institute, Osaka Prefecture University, 1-58, Rinkuourai-kita, Izumisano, Osaka 598-8531, Japan.
  • Iguchi A; Leibniz-Institute of Freshwater Ecology and Inland Fisheries, Müggelseedamm 301, 12587, Berlin, Germany.
  • Hatanaka N; Department of Animal and Grassland Sciences, Faculty of Agriculture, University of Miyazaki, 1-1, Gakuen Kibanadai-nishi, Miyazaki 889-2192, Japan.
  • Hinenoya A; Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58, Rinkuourai-kita, Izumisano, Osaka 598-8531, Japan.
  • Lara RJ; Asian Health Science Research Institute, Osaka Prefecture University, 1-58, Rinkuourai-kita, Izumisano, Osaka 598-8531, Japan.
  • Yamasaki S; Graduate School of Life and Environmental Sciences, Osaka Prefecture University, 1-58, Rinkuourai-kita, Izumisano, Osaka 598-8531, Japan.
J Vet Med Sci ; 83(4): 630-636, 2021 Apr 09.
Article em En | MEDLINE | ID: mdl-33612661
The aims of this study were to investigate prevalence, O-genotype, and virulence gene profile including Shiga toxin (Stx) 2 gene-subtype of Stx-producing Escherichia coli (STEC) in beef cattle from the Bahía Blanca in Argentina. Rectal swabs were collected from 283 beef cattle in 2012. stx genes were detected in 90 (32%) out of the 283 rectal swabs by stx gene-specific PCR assay. The positive cases were 13 with stx1, 58 with stx2, and 19 with both stx1 and stx2. Among 90 stx gene-positive samples, 45 STEC strains were isolated, which included 3 stx1, 34 stx2, and eight stx1 and stx2 genes positive isolates. O-genotyping grouped 45 STEC strains into 19 different O-genotypes such as Og8, Og145, Og171, Og185 (4 from each), Og22, Og153, Og157 (3 from each) and others. Various stx2 gene-subtypes were identified in 42 STEC strains: 13 positive cases for stx2a, 11 for stx2c, 3 for stx2g, 10 for stx2a and stx2d, 4 for stx2a and stx2c, and 1 for stx2b, stx2c and stx2g. efaI gene, generally prevalent in clinical strains, was detected in relatively high in the STEC strains. These data suggest that stx2a and stx2c were distributed not only in O145 and O157 but also in minor O-genotypes of STEC in Argentina.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Proteínas de Escherichia coli / Infecções por Escherichia coli / Escherichia coli Shiga Toxigênica Tipo de estudo: Prevalence_studies / Risk_factors_studies Limite: Animals País/Região como assunto: America do sul / Argentina Idioma: En Revista: J Vet Med Sci Assunto da revista: MEDICINA VETERINARIA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Japão País de publicação: Japão
Texto completo
Adicionar na Minha BVS
Imprimir
XML
PubMed Links
Buscar no Google

Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Proteínas de Escherichia coli / Infecções por Escherichia coli / Escherichia coli Shiga Toxigênica Tipo de estudo: Prevalence_studies / Risk_factors_studies Limite: Animals País/Região como assunto: America do sul / Argentina Idioma: En Revista: J Vet Med Sci Assunto da revista: MEDICINA VETERINARIA Ano de publicação: 2021 Tipo de documento: Article País de afiliação: Japão País de publicação: Japão