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May 13, 2026MicroorganismsOpen Access

Antimicrobial Susceptibility and Characterization of Extended-Spectrum β-Lactamases in Escherichia coli Isolated from Buffalo Mastitis Milk in Guangdong Province, China

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Authors

YZYunchen ZhouRXRong XiSWSiran Wang

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Overview

Study finds high antimicrobial resistance and extended-spectrum β-lactamases in E. coli from buffaloes, suggesting significant public health risks.

Key Points

  • To characterize antimicrobial resistance and ESBLs in E. coli from buffalo mastitis milk in Guangdong.
  • Analysis of antimicrobial susceptibility in E. coli isolates
  • Phylogenetic classification of E. coli
  • Detection of virulence genes and plasmid profiles
  • Assessment of resistance gene co-carriage
  • 54 E. coli isolates showed high resistance to common antibiotics like ampicillin and cefotaxime
  • Phylogroup B1 was predominant among ESBL producers
  • Most common sequence type was ST50, and serogroup O150 was dominant
  • Several virulence genes were frequently detected, indicating potential health risks

Cite This Study

Zhou et al. (2026) studied this question.

synapsesocial.com/papers/6a03cbe01c527af8f1ecfa75https://doi.org/10.3390/microorganisms14051055
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