Coexistence of seven different carbapenemase producers in a single hospital admission screening confirmed by whole-genome sequencing

Objective: To molecularly characterize several extensively drug-resistant isolates from a single hospital admission screening of a war-injured patient from Ukraine. Methods: Admission screening included swabs from skin, wounds, catheters, nasopharyngeum and rectum. Bacterial identification, antimicr...

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Main Authors: Frieder Fuchs, Kyriaki Xanthopoulou, Tessa Burgwinkel, Rocío Arazo del Pino, Esther Wohlfarth, Florian Pavlu, Ralf M. Hagen, Paul G. Higgins
Format: Article
Language:English
Published: Elsevier 2024-12-01
Series:Journal of Global Antimicrobial Resistance
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Online Access:http://www.sciencedirect.com/science/article/pii/S2213716524001735
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author Frieder Fuchs
Kyriaki Xanthopoulou
Tessa Burgwinkel
Rocío Arazo del Pino
Esther Wohlfarth
Florian Pavlu
Ralf M. Hagen
Paul G. Higgins
author_facet Frieder Fuchs
Kyriaki Xanthopoulou
Tessa Burgwinkel
Rocío Arazo del Pino
Esther Wohlfarth
Florian Pavlu
Ralf M. Hagen
Paul G. Higgins
author_sort Frieder Fuchs
collection DOAJ
description Objective: To molecularly characterize several extensively drug-resistant isolates from a single hospital admission screening of a war-injured patient from Ukraine. Methods: Admission screening included swabs from skin, wounds, catheters, nasopharyngeum and rectum. Bacterial identification, antimicrobial susceptibility testing and rapid multiplex PCR assays targeting resistance genes were performed during routine diagnostics. Isolates positive by PCR had their genomes sequenced using short- and long read-platforms (MiSeq and MinION) to confirm species, identify resistance genes and plasmids and investigate clonality with core-genome MLST. Results: Seven Gram-negative pathogens (Acinetobacter baumannii (n = 2; ST78, ST2), Klebsiella pneumoniae (n = 2; ST395), Pseudomonas aeruginosa (n = 1; ST1047), Escherichia coli (n = 1; ST46), Enterobacter cloacae complex (n = 1; ST231)) were molecularly confirmed non-identical. Antimicrobial susceptibility testing showed resistance to carbapenems (7/7 isolates) and last-resort treatment options such as ceftazidime-avibactam (6/7 isolates) and cefiderocol (4/7 isolates). All isolates were colistin susceptible. Sequencing identified the E. cloacae complex as Enterobacter hormaechei subsp. xiangfangensis. Six acquired carbapenemase genes (blaIMP-1, blaNDM-1, blaOXA-48, blaNDM-5, blaOXA-23 and blaOXA-72) were detected. Both A. baumannii isolates differed in sequence type, carbapenemases and cefiderocol susceptibility. Both K. pneumoniae isolates shared sequence type and some resistance genes on an IncR plasmid but were different in core-genome MLST and carbapenemases (OXA-48 or NDM-1). One vancomycin-resistant Enterococcus faecium was also detected (VanA). Conclusions: War-injured patients from Ukraine may carry different clones of multidrug-resistant pathogens with limited treatment options and diverse resistance genes at risk for dissemination. Infection control measures should include early molecular characterization of isolates for detection of routes of transmission.
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spelling doaj-art-07a1d2dc0c624313b8e07f951eafa8fb2025-08-20T02:39:38ZengElsevierJournal of Global Antimicrobial Resistance2213-71652024-12-013918418810.1016/j.jgar.2024.09.005Coexistence of seven different carbapenemase producers in a single hospital admission screening confirmed by whole-genome sequencingFrieder Fuchs0Kyriaki Xanthopoulou1Tessa Burgwinkel2Rocío Arazo del Pino3Esther Wohlfarth4Florian Pavlu5Ralf M. Hagen6Paul G. Higgins7Institute for Medical Microbiology, Immunology and Hygiene, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany; Department of Microbiology and Hospital Hygiene, Bundeswehr Central Hospital Koblenz, Koblenz, Germany; Corresponding author: Mailing address: Institute for Medical Microbiology, Immunology and Hygiene, Goldenfelsstr. 19-21, 50935 Cologne, Germany.Institute for Medical Microbiology, Immunology and Hygiene, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany; German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, GermanyInstitute for Medical Microbiology, Immunology and Hygiene, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany; German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, GermanyInstitute for Medical Microbiology, Immunology and Hygiene, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany; German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, GermanyAntiinfectives Intelligence GmbH, Cologne, GermanyDepartment of Trauma Surgery and Orthopaedics, Bundeswehr Central Hospital Koblenz, Koblenz, GermanyDepartment of Microbiology and Hospital Hygiene, Bundeswehr Central Hospital Koblenz, Koblenz, GermanyInstitute for Medical Microbiology, Immunology and Hygiene, Faculty of Medicine and University Hospital Cologne, University of Cologne, Cologne, Germany; German Center for Infection Research (DZIF), Partner Site Bonn-Cologne, Cologne, GermanyObjective: To molecularly characterize several extensively drug-resistant isolates from a single hospital admission screening of a war-injured patient from Ukraine. Methods: Admission screening included swabs from skin, wounds, catheters, nasopharyngeum and rectum. Bacterial identification, antimicrobial susceptibility testing and rapid multiplex PCR assays targeting resistance genes were performed during routine diagnostics. Isolates positive by PCR had their genomes sequenced using short- and long read-platforms (MiSeq and MinION) to confirm species, identify resistance genes and plasmids and investigate clonality with core-genome MLST. Results: Seven Gram-negative pathogens (Acinetobacter baumannii (n = 2; ST78, ST2), Klebsiella pneumoniae (n = 2; ST395), Pseudomonas aeruginosa (n = 1; ST1047), Escherichia coli (n = 1; ST46), Enterobacter cloacae complex (n = 1; ST231)) were molecularly confirmed non-identical. Antimicrobial susceptibility testing showed resistance to carbapenems (7/7 isolates) and last-resort treatment options such as ceftazidime-avibactam (6/7 isolates) and cefiderocol (4/7 isolates). All isolates were colistin susceptible. Sequencing identified the E. cloacae complex as Enterobacter hormaechei subsp. xiangfangensis. Six acquired carbapenemase genes (blaIMP-1, blaNDM-1, blaOXA-48, blaNDM-5, blaOXA-23 and blaOXA-72) were detected. Both A. baumannii isolates differed in sequence type, carbapenemases and cefiderocol susceptibility. Both K. pneumoniae isolates shared sequence type and some resistance genes on an IncR plasmid but were different in core-genome MLST and carbapenemases (OXA-48 or NDM-1). One vancomycin-resistant Enterococcus faecium was also detected (VanA). Conclusions: War-injured patients from Ukraine may carry different clones of multidrug-resistant pathogens with limited treatment options and diverse resistance genes at risk for dissemination. Infection control measures should include early molecular characterization of isolates for detection of routes of transmission.http://www.sciencedirect.com/science/article/pii/S2213716524001735XDRUkraineWarMDROCarbapenemResistance
spellingShingle Frieder Fuchs
Kyriaki Xanthopoulou
Tessa Burgwinkel
Rocío Arazo del Pino
Esther Wohlfarth
Florian Pavlu
Ralf M. Hagen
Paul G. Higgins
Coexistence of seven different carbapenemase producers in a single hospital admission screening confirmed by whole-genome sequencing
Journal of Global Antimicrobial Resistance
XDR
Ukraine
War
MDRO
Carbapenem
Resistance
title Coexistence of seven different carbapenemase producers in a single hospital admission screening confirmed by whole-genome sequencing
title_full Coexistence of seven different carbapenemase producers in a single hospital admission screening confirmed by whole-genome sequencing
title_fullStr Coexistence of seven different carbapenemase producers in a single hospital admission screening confirmed by whole-genome sequencing
title_full_unstemmed Coexistence of seven different carbapenemase producers in a single hospital admission screening confirmed by whole-genome sequencing
title_short Coexistence of seven different carbapenemase producers in a single hospital admission screening confirmed by whole-genome sequencing
title_sort coexistence of seven different carbapenemase producers in a single hospital admission screening confirmed by whole genome sequencing
topic XDR
Ukraine
War
MDRO
Carbapenem
Resistance
url http://www.sciencedirect.com/science/article/pii/S2213716524001735
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