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Fig. 3 | Antimicrobial Resistance & Infection Control

Fig. 3

From: Uncovering the spread of drug-resistant bacteria through next-generation sequencing based surveillance: transmission of extended-spectrum β-lactamase-producing Enterobacterales by a contaminated duodenoscope

Fig. 3

Overview of ESBL-producing C. freundii and K. pneumoniae isolates with ST assigned by cgMLST analysis performed at UMCG during 2018–2020, highlighting different isolate categories and outbreak strains. Strains were selected corresponding to the same lineages. Blue, isolates obtained from patients who underwent endoscopy before the first positive culture; purple, isolates obtained from patients who underwent ERCP before the first positive culture; pink, isolates obtained from the duodenoscope; red dots around the purple-colored isolates, outbreak strains of C. freundii (ST540) and K. pneumoniae (ST17). a, ST22 C. freundii were obtained from the same patient at different times; b, ST628 K. pneumoniae strains were identified in two patients who shared a room, and both underwent ERCP procedures with different duodenoscopes in October 2019

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