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February 9, 2026SHILAP Revista de lepidopterologíaOpen Access

The emergence of chromosomally located blaCTX-M subtypes in Salmonella enterica serotype Kentucky ST198 isolated from diarrhea patients, food, and environmental sources in Henan, China

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Authors

HQHaoyu QiHenan Provincial Center for Disease Control and PreventionMLM H LiChina National Center for Food Safety Risk AssessmentYLYanfen LiHenan Provincial Center for Disease Control and Prevention

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Implication

Uncovers antimicrobial resistance mechanisms in Salmonella Kentucky ST198, highlighting public health concerns.

Key Points

  • The aim is to evaluate the prevalence and genomic characteristics of Salmonella Kentucky ST198 and its antimicrobial resistance profile.
  • Analyzed 68 Salmonella Kentucky ST198 isolates from patients, food, and environmental sources.
  • Conducted whole-genome sequencing and antibiotic susceptibility tests.
  • Performed phylogenetic analysis to assess genetic relationships among isolates.
  • 68 out of 1,574 Salmonella isolates displayed multi-drug resistance (MDR).
  • Isolates carried between 5 and 19 antimicrobial resistance genes.
  • Phylogenetic analysis identified two clades (ST198-1 and ST198-2) with specific mutations in the gyrA gene.

Cite This Study

Qi et al. (2026) studied this question.

synapsesocial.com/papers/698978dff0ec2af6756e7133https://doi.org/10.3389/fmicb.2026.1758643
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