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The rise of multidrug resistant Salmonella isolates in healthy chickens in Brazil by successful establishment of plasmid IncHI2A carrying several antibiotic resistance genes.
Penha Filho, Rafael Antonio Casarin; Ferreira, Joseane Cristina; Galetti, Renata; Kanashiro, Ana Maria Iba; Berchieri, Angelo; da Costa Darini, Ana Lúcia.
Afiliação
  • Penha Filho RAC; Department of Veterinary Pathology, School of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Via de Acesso Prof. Paulo Donato Castellane s/n, Jaboticabal, SP, 14884-900, Brazil. rafaelpenha12@gmail.com.
  • Ferreira JC; School of Pharmaceutical Sciences of Ribeirão Preto - University of São Paulo (USP), Ribeirão Preto, SP, 14040-903, Brazil.
  • Galetti R; School of Pharmaceutical Sciences of Ribeirão Preto - University of São Paulo (USP), Ribeirão Preto, SP, 14040-903, Brazil.
  • Kanashiro AMI; Instituto Biológico de Descalvado, Descalvado, SP, 13690-000, Brazil.
  • Berchieri A; Department of Veterinary Pathology, School of Agricultural and Veterinary Sciences, São Paulo State University (UNESP), Via de Acesso Prof. Paulo Donato Castellane s/n, Jaboticabal, SP, 14884-900, Brazil.
  • da Costa Darini AL; School of Pharmaceutical Sciences of Ribeirão Preto - University of São Paulo (USP), Ribeirão Preto, SP, 14040-903, Brazil.
Braz J Microbiol ; 54(1): 469-474, 2023 Mar.
Article em En | MEDLINE | ID: mdl-36607526
Salmonella spp. is an important global issue in food-producing animals. The present study evaluated antimicrobial resistance and virulence profiles in Salmonella spp. isolates from chickens in Brazil. Identification of serotypes, virulence and antimicrobial resistance genes, and plasmid profiles were performed. Three different serovars were found, S. Schwarzengrund, S. Newport and S. Kentucky. All isolates were considered Multidrug- resistance (MDR). Among the 32 Salmonella spp. isolates analysed, 29 isolates carried blaCTX-M-2 gene and showed the insertion sequence ISCR1 and a class 1 integron structure upstream from blaCTX-M-2. This gene was harboured in large IncHI2A plasmids with approximately 280kb. Furthermore, 30 isolates harboured tetA and tetB genes and 25 also harboured qnrB. The virulence genes invA, misL, orfL, spiC and pipD were detected in all isolates. The study shows a high prevalence of MDR Salmonella isolates disseminated in poultry farms. The association of the replicon IncHI2A with the resistance genes found, elevate the risk of foodborne disease outbreaks.
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Galinhas / Antibacterianos Tipo de estudo: Risk_factors_studies Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Braz J Microbiol Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil
Texto completo
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Texto completo: 1 Coleções: 01-internacional Base de dados: MEDLINE Assunto principal: Galinhas / Antibacterianos Tipo de estudo: Risk_factors_studies Limite: Animals País/Região como assunto: America do sul / Brasil Idioma: En Revista: Braz J Microbiol Ano de publicação: 2023 Tipo de documento: Article País de afiliação: Brasil País de publicação: Brasil