Association between coa gene and enterotoxin gene in S. aureus from dairy cattle in Brazil.

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dc.contributorMYLENA KAROLINE VALMORBIDA, UNIVERSIDADE ESTADUAL PAULISTA JÚLIO DE MESQUITA FILHO; MARITA VEDOVELLI CARDOZO, UNIVERSIDADE ESTADUAL DE MINAS GERAIS; CAMILA CHIODA DE ALMEIDA, UNIVERSIDADE ESTADUAL PAULISTA JÚLIO DE MESQUITA FILHO; NATÁLIA PEREIRA, UNIVERSIDADE ESTADUAL PAULISTA JÚLIO DE MESQUITA FILHO; DIOGENES DEZEN, INSTITUTO FEDERAL CATARINENSE; MARCELLA ZAMPOLI DE ASSIS, INSTITUTO FEDERAL CATARINENSE; NEWTON VALERIO VERBISCK, CNPGC; ELIETE GRIEBELER, INSTITUTO FEDERAL CATARINENSE; LUCAS JOSÉ LUDUVERIO PIZAURO, UNIVERSIDADE ESTADUAL DE SANTA CRUZ; FERNANDO ANTÔNIO DE ÁVILA, UNIVERSIDADE ESTADUAL PAULISTA JÚLIO DE MESQUITA FILHO.
dc.creatorVALMORBIDA, M. K.
dc.creatorCARDOZO, M. V.
dc.creatorALMEIDA, C. C. DE
dc.creatorPEREIRA, N.
dc.creatorDEZEN, D.
dc.creatorASSIS, M. Z. DE
dc.creatorVERBISCK, N. V.
dc.creatorGRIEBELER, E.
dc.creatorPIZAURO, L. J. L.
dc.creatorÁVILA, F. A. DE
dc.date2023-11-28T19:33:35Z
dc.date2023-11-28T19:33:35Z
dc.date2023-11-28
dc.date2023
dc.date.accessioned2026-07-07T03:42:11Z
dc.descriptionABSTRACT - Staphylococcus aureus is an important agent in bovine mastitis, and some specific virulence factors may be implicated in this disease. Therefore, this study aimed to investigate the importance of the presence of coagulase, superantigens, genotypic and phenotypic resistance, and pulsotypes in 65 S. aureus isolates from bovine clinical and subclinical mastitis in the Southeast of Brazil. A high correlation was observed between the genes coa and see, as well as between the sei and the see and seh. High resistance rates were observed for penicillin (95.4%), tetracycline (89.2%), cefoxitin (86.1%), oxacillin (84.6%), erythromycin (84.6%), clindamycin (84.6%), chloramphenicol (81.5%), ceftriaxone (80.0%), and ampicillin (80.0%). Analysis of antimicrobial resistance profiles showed that 89.2% of isolates were multi-drug-resistant. No mecA-positive S. aureus isolates were detected. It was observed that seven isolates were resistant to all the β-lactam tested while being susceptible to cefoxitin, which could be indicative of borderline methicillin resistance in S. aureus. High genetic diversity with no specific virulence profile being predominant was observed. Thus, this study observed a high correlation between the coa and enterotoxins genes, and demonstrates that there is no predominant pulsotype causing intramammary infection and that there is a high rate of antibiotic resistance in S. aureus isolates from dairy farms in the southeast regions of Brazil.
dc.identifierFood Science and Technology, 43, e16222, 2023.
dc.identifier1678-457X (Online).
dc.identifierhttp://www.alice.cnptia.embrapa.br/alice/handle/doc/1158778
dc.identifierhttps://doi.org/10.5327/fst.16222
dc.identifier.urihttp://hdl.handle.net/123456789/441232
dc.languageeng
dc.rightsopenAccess
dc.subjectGado Leiteiro
dc.subjectStaphylococcus Aureus
dc.subjectDairy cattle
dc.subjectEnterotoxins
dc.subjectMastitis
dc.subjectPulsed-field gel electrophoresis
dc.subjectToxins
dc.titleAssociation between coa gene and enterotoxin gene in S. aureus from dairy cattle in Brazil.
dc.typeArtigo de periódico

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