Multidrug Resistance of Escherichia coli Strains Isolated From Bovine Feces and Carcasses in Northeast Mexico

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AudienciaPúblico en generales_ES
CoberturaMéxicoes_ES
Fecha de ingreso2026-10-05T16:32:30Z
Fecha de publicación2021-01-01
ResumenIn this work, the antimicrobial resistance profile of Escherichia coli strains (n = 248) isolated from bovine feces and carcass samples from Tamaulipas, Mexico, was evaluated. Susceptibility to 12 antibiotics conventionally used in human and veterinary treatments was determined according to Clinical and Laboratory Standards Institute guidelines. Genes encoding resistance to tetracycline (tetA and tetB), streptomycin (strA), aminoglycoside (aadA), and beta-lactamase (bla(TEM) and bla(SHV)) were investigated by PCR. Also, stx1, stx2, eae, bfp, and hlyA encoding virulence factors were determined. Of the isolates, 85.9\% were confirmed as E. coli strains. Among the 213 E. coli isolates tested, 94.8\% (202/213) showed resistance for at least one antimicrobial, mainly ampicillin (83.0\%; 177/213), cephalothin (76.0\%; 162/213), and tetracyclines (69.0\%; 147/213). In all the other antibiotics tested, the resistance percentage was below 36\%. A multidrug-resistant phenotype was found in 72.7\% of the tested strains. The presence of the tet gene (tetA or tetB) was detected in 43.1\% of the isolates, the strA gene in 17.3\%, and aadA1 in 51.6\%. The bla(TEM) and bla(SHV) genes were found in 10.3 and 0.4\% of the isolates, respectively. stx1 was detected in 4.2\% of isolates, stx2 in 7.0, and hlyA in 2.8\%. The virulence genes, eae and bfp, were not detected in any strain. These results indicate that Tamaulipas food products of bovine origin can be a source of multiresistant E. coli strains for the environment and exposure for consumers.es_ES
Doihttps://doi.org/10.3389/fvets.2021.643802es_ES
URIhttps://riuat.uat.edu.mx/handle/123456789/4308
Idiomaenes_ES
EditorialFRONTIERS MEDIA SAes_ES
RelaciónFrontiers in Veterinary Sciencees_ES
URL relacionadohttps://doi.org/10.3389/fvets.2021.643802es_ES
DerechosAcceso abierto (Metadatos de producción científica)es_ES
Licenciahttp://purl.org/coar/access_right/c_abf2es_ES
FuenteFrontiers in Veterinary Science
Palabra clavebovinees_ES
Palabra claveantimicrobial resistancees_ES
Palabra claveMDRes_ES
Palabra claveEscherichia colies_ES
Palabra claveESBLes_ES
TítuloMultidrug Resistance of Escherichia coli Strains Isolated From Bovine Feces and Carcasses in Northeast Mexicoes_ES
TipoArtículoes_ES
ArbitradoHa sido Arbitradoes_ES
AutorMartinez-Vazquez, Ana V.
AutorVazquez-Villanueva, Jose
AutorLeyva-Zapata, Luis M.
AutorBarrios-Garcia, Hugo
AutorRivera, Gildardo
AutorBocanegra-Garcia, Virgilio
AutorMartinez-Vazquez, Ana V.es_ES
AutorVazquez-Villanueva, Josees_ES
AutorLeyva-Zapata, Luis M.es_ES
AutorBarrios-Garcia, Hugoes_ES
AutorRivera, Gildardoes_ES
AutorBocanegra-Garcia, Virgilioes_ES
InstituciónUniversidad Autónoma de Tamaulipas
InstituciónUniversidad Autónoma de Tamaulipases_ES
URL relacionadahttps://doi.org/10.3389/fvets.2021.643802
Tipo de artículoIndexado
Tipo de artículoIndexadoes_ES
Volumen8es_ES

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