Genetic Features Leading to Reduced Susceptibility to Aztreonam-Avibactam among Metallo-β-Lactamase-Producing Escherichia coli Isolates
Mustafa Sadek, Mario Juhas, Laurent Poirel, Patrice Nordmann
Abstract
Metallo-β-lactamase (MBL)-producing Escherichia coli isolates resistant to the newly developed β-lactam/β-lactamase inhibitor drug combination aztreonam-avibactam (ATM-AVI) have been reported. Here, we analyzed a series of 118 clinical MBL-producing E. coli isolates of various geographical origins for susceptibility to ATM-AVI. The nature of the PBP3 protein sequence and the occurrence of bla CMY genes for susceptibility to ATM-AVI were investigated.
Topics & Concepts
AztreonamEscherichia coliMicrobiologyEnterobacteriaceaeCeftazidime/avibactamAvibactamBiologyAntibioticsChemistryGeneticsAntibiotic resistanceGeneImipenemAntibiotic Resistance in BacteriaVibrio bacteria research studiesPharmaceutical and Antibiotic Environmental Impacts