A Multidrug-Resistant Extended-Spectrum Beta-Lactamase (ESBL)-Producing Enterobacter hormaechei Strain from Mixed Sprouts
© 2024. The Author(s), under exclusive licence to Springer Science+Business Media, LLC, part of Springer Nature..
Fresh vegetables can harbor antibiotic-resistant bacteria, including extended-spectrum β-lactamase (ESBL)-producing Enterobacterales. Enterobacter hormaechei is a bacterium belonging to the Enterobacterales order and the most commonly identified nosocomial pathogen of Enterobacter cloacae complex. The purpose of this study was to characterize a multi-drug resistant ESBL-producing E. hormaechei strain isolated from a sample of mixed sprouts. Vegetable samples were pre-enriched in buffered peptone water, followed by enrichment in Enterobacteria Enrichment Broth, and isolation on Chromagar™ ESBL plates. One isolate from a sprout sample was confirmed to produce both ESBL and AmpC β-lactamases through the combination disk diffusion assay using antibiotic disks containing cefotaxime and ceftazidime with or without clavulanate, and with or without cloxacillin, respectively. The isolate was also resistant to multiple antibiotics, including cefotaxime, ceftazidime, chloramphenicol, trimethoprim-sulfamethoxazole, tetracycline, gentamicin, ampicillin, and amoxicillin-clavulanate, as determined by antimicrobial susceptibility testing. Through whole genome sequencing, the isolate was identified as E. hormaechei 057-E1, which carried multiple antibiotic resistance (AR) genes and a sul2-aph(3″)-Ib-aph(6)-Id-blaTEM-1-ISEcp1 -blaCTX-M-15 gene cluster. Our results further demonstrate the important role of fresh vegetables in AR and highlight the need to develop strategies for AR mitigation in fresh vegetables.
| Medienart: |
E-Artikel |
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| Erscheinungsjahr: |
2024 |
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| Erschienen: |
2024 |
| Enthalten in: |
Zur Gesamtaufnahme - volume:81 |
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| Enthalten in: |
Current microbiology - 81(2024), 5 vom: 09. Apr., Seite 131 |
| Sprache: |
Englisch |
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| Beteiligte Personen: |
Leighton, Elizabeth A [VerfasserIn] |
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| Links: |
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| Themen: |
74469-00-4 |
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| Anmerkungen: |
Date Completed 10.04.2024 Date Revised 22.04.2024 published: Electronic Citation Status MEDLINE |
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| doi: |
10.1007/s00284-024-03663-3 |
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| 520 | |a Fresh vegetables can harbor antibiotic-resistant bacteria, including extended-spectrum β-lactamase (ESBL)-producing Enterobacterales. Enterobacter hormaechei is a bacterium belonging to the Enterobacterales order and the most commonly identified nosocomial pathogen of Enterobacter cloacae complex. The purpose of this study was to characterize a multi-drug resistant ESBL-producing E. hormaechei strain isolated from a sample of mixed sprouts. Vegetable samples were pre-enriched in buffered peptone water, followed by enrichment in Enterobacteria Enrichment Broth, and isolation on Chromagar™ ESBL plates. One isolate from a sprout sample was confirmed to produce both ESBL and AmpC β-lactamases through the combination disk diffusion assay using antibiotic disks containing cefotaxime and ceftazidime with or without clavulanate, and with or without cloxacillin, respectively. The isolate was also resistant to multiple antibiotics, including cefotaxime, ceftazidime, chloramphenicol, trimethoprim-sulfamethoxazole, tetracycline, gentamicin, ampicillin, and amoxicillin-clavulanate, as determined by antimicrobial susceptibility testing. Through whole genome sequencing, the isolate was identified as E. hormaechei 057-E1, which carried multiple antibiotic resistance (AR) genes and a sul2-aph(3″)-Ib-aph(6)-Id-blaTEM-1-ISEcp1 -blaCTX-M-15 gene cluster. Our results further demonstrate the important role of fresh vegetables in AR and highlight the need to develop strategies for AR mitigation in fresh vegetables | ||
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