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Volume 5, Issue 6

Emergence of ADC-5 Cephalosporinase in environmental from a German tank milk with a novel Sequence Type Open Access

Abstract

Bacteria resistant to antibiotics arguably pose the greatest threat to human health in the twenty-first century. One such bacterium that typifies antibiotic resistance is . Frequently, hospital strains of display multidrug resistant (MDR) or extensively drug resistant (XDR) phenotypes, often requiring the use of last resort antibiotics for treatment. In addition to hospital settings, has been isolated from many highly divergent sources including wastewater treatment plant effluent, soil, and agricultural run-off with global distribution. However, such isolates remain poorly characterized. In this study, we characterized a strain of AB341-IK15, isolated from bulk tank milk in Germany that demonstrated resistance to ceftazidime and intermediate resistance to ceftriaxone and piperacillin/tazobactam. Further genetic characterization identified an ADC-5 cephalosporinase, first incidence in an environmental isolate; and an OXA-408 oxacillinase that may contribute to this phenotype. Interestingly, AB341-IK15 is of a novel sequence type. This research underscores the importance of studying isolates of of non-clinical origin to understand the antibiotic resistance and virulence potential of environmental isolates of as well to understand the diversity of this species.

  • Received:
  • Accepted:
  • Published Online:
Keyword(s): antibiotic resistance , beta-lactamase , food source , human health and pathogen
Funding
This study was supported by the:
  • Natural Sciences and Engineering Research Council of Canada (Award RGPIN-2021-02902)
    • Principal Award Recipient: AyushKumar
© 2023 The Authors
  • This is an open-access article distributed under the terms of the Creative Commons Attribution License.
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2023-06-26
2026-04-22

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/content/journal/acmi/10.1099/acmi.0.000485.v3
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Emergence of ADC-5 Cephalosporinase in environmental Acinetobacter baumannii from a German tank milk with a novel Sequence Type
Access Microbiology 5, 000485.v3 (2023); https://doi.org/10.1099/acmi.0.000485.v3
/content/journal/acmi/10.1099/acmi.0.000485.v3
/content/journal/acmi/10.1099/acmi.0.000485.v3
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