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<p>Ambler class A IMI enzymes are minor carbapenemases primarily associated with the <i>Enterobacter cloacae</i> complex. Screening soil surfaces of a well-visited public garden revealed an IMI-6-producing <i>Enterobacter asburiae</i> ST657 near a trash can. The strain harboured a 163-kb conjugative IncFII(Yp) plasmid containing <i>bla</i><sub>IMI−6</sub> and putative virulence genes. WGS comparative analysis with other clinical and non-clinical <i>E. asburiae</i> ST657 showed that it was genetically related to strains from a patient in France (62 ΔSNPs) and from retail salad in Switzerland (79 ΔSNPs). This finding suggests possible trans-sectoral dissemination of IMI-producing bacteria raising concerns since they could further spread into the community.</p>

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Genomic comparative analysis of Enterobacter asburiae harbouring a conjugative blaIMI−6-plasmid isolated from a public garden in Switzerland

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  • 发表日期：

    2025年4月23日

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  • Yvonne Spahr,
  • Andrea Endimiani,
  • Vincent Perreten

摘要

Ambler class A IMI enzymes are minor carbapenemases primarily associated with the Enterobacter cloacae complex. Screening soil surfaces of a well-visited public garden revealed an IMI-6-producing Enterobacter asburiae ST657 near a trash can. The strain harboured a 163-kb conjugative IncFII(Yp) plasmid containing blaIMI−6 and putative virulence genes. WGS comparative analysis with other clinical and non-clinical E. asburiae ST657 showed that it was genetically related to strains from a patient in France (62 ΔSNPs) and from retail salad in Switzerland (79 ΔSNPs). This finding suggests possible trans-sectoral dissemination of IMI-producing bacteria raising concerns since they could further spread into the community.