Detection of Virulence Genes and Multidrug Resistance in E. coli Isolated from Buffaloes

April 1, 2026IJID One HealthOpen Access

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Key Points

The aim was to assess the prevalence and antimicrobial resistance profiles of E. coli in buffalo feces.
Collected 430 random fecal samples from buffaloes.
Used conventional bacteriological and molecular techniques for E. coli identification.
Conducted antimicrobial resistance testing using the disc diffusion method.
Performed PCR screening of AMR genes and shiga toxin genes.
Confirmed 298 isolates of E. coli, representing 69.3% prevalence.
Higher prevalence in diarrheic buffaloes (90.4%) than healthy ones (63.4%).
Shiga toxin gene stx1 found in 29.19%, stx2 in 8.72% of isolates.
Significant resistance observed to tetracycline (88.30%) and amoxicillin (86.24%).
High detection rates of AMR genes including tetA (86.24%) and blaTEM (91.27%).

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Identifies virulence genes and antimicrobial resistance in E. coli from buffaloes, suggesting significant public health concerns.

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Islam et al. (2026) studied this question.

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