Evaluation of imipenem-relebactam susceptibility testing in carbapenem resistant Pseudomonas aeruginosa: comparison of sensititre microplates, disc diffusion, and MTS gradient strips with broth microdilution.

Four commercial tests EUMDROXF Sensititre microplates, MTS gradient strips, and disc diffusion were evaluated for imipenem-relebactam susceptibility in 148 ceftazidime and imipenem-resistant Pseudomonas aeruginosa strains, using broth microdilution (BMD) as the reference. EUMDROXF Sensititre microplates showed the highest accuracy (CA = 93.2%, EA = 93.

Genomic epidemiology of third-generation cephalosporin-resistant from companion animals and human infections in Europe.

In high-income countries, dogs and cats are often considered members of the family. Because of this proximity, it has been suggested that pets and humans might exchange bacterial species from their gut microbiota, with multidrug resistant bacteria being of particular concern. The aim of this study was to compare the genomes of third-generation cephalosporin-resistant (3GC-R) responsible for human and pet infections in Europe.

Outbreak of multidrug-resistant Staphylococcus haemolyticus ST29 in a French neonatal unit.

Background: Staphylococcus haemolyticus is a clinically relevant coagulase-negative staphylococcus frequently responsible for hospital-acquired infections, especially in premature newborns.

Aim: To describe an outbreak of multidrug-resistant S. haemolyticus in a neonatal department.

Population structure of community-acquired extended-spectrum beta-lactamase producing Escherichia coli and methicillin resistant Staphylococcus aureus in a French region showed no difference between urban and rural areas.

Antimicrobial resistance is a global health issue and extended-spectrum β-lactamase producing Escherichia coli (ESBL-Ec) and methicillin-resistant Staphylococcus aureus (MRSA) are of particular concern. Whole genome sequencing analysis of isolates from the community is essential to understand the circulation of those multidrug-resistant bacteria. Our main objective was to determine the population structure of clinical ESBL-Ec and MRSA isolated in the community setting of a French region.

Introduction and benchmarking of pyMLST: open-source software for assessing bacterial clonality using core genome MLST.

Core genome multilocus sequence typing (cgMLST) has gained in popularity for bacterial typing since whole-genome sequencing (WGS) has become affordable. We introduce here pyMLST, a new complete, stand-alone, free and open source pipeline for cgMLST analysis. pyMLST can create or import a core genome database.