Clonal Spread and Intra- and Inter-Species Plasmid Dissemination Associated With Carbapenemase-Producing Enterobacterales During a Hospital Outbreak in Barcelona, Spain.

The study aimed to characterize the clonal spread of resistant bacteria and dissemination of resistance plasmids among carbapenem-resistant Enterobacterales at a tertiary hospital in Catalonia, Spain. Isolates were recovered from surveillance rectal swabs and diagnostic samples. Species identification was by matrix-assisted laser desorption ionization-time time of flight mass spectrometry (MALDI-TOF MS).

Dissemination of NDM-producing Klebsiella pneumoniae and Escherichia coli high-risk clones in Catalan healthcare institutions.

Objectives: To characterize the clonal spread of carbapenem-resistant Klebsiella pneumoniae and Escherichia coli isolates between different healthcare institutions in Catalonia, Spain.

Methods: Antimicrobial susceptibility was tested by disc diffusion. MICs were determined by gradient diffusion or broth microdilution.

Spread of ST348 Producing NDM-1 in a Peruvian Hospital.

The aim of this study was to characterize carbapenem-resistant (CR-Kp) isolates recovered from adults and children with severe bacteremia in a Peruvian Hospital in June 2018. Antimicrobial susceptibility was determined by disc/gradient diffusion and broth microdilution when necessary. Antibiotic resistance mechanisms were evaluated by PCR and DNA sequencing.

and Virulence Potential of the Emergent Species of the (Ab) Group.

The increased use of molecular identification methods and mass spectrometry has revealed that spp. of the (Ab) group other than are increasingly being recovered from human samples and may pose a health challenge if neglected. In this study 76 isolates of 5 species within the Ab group ( = 16, = 12, = 16, = 20, and = 12), were compared in terms of antimicrobial susceptibility, carriage of intrinsic resistance genes, biofilm formation, and the ability to kill in an infection assay.

Pathogenic Acinetobacter species including the novel Acinetobacter dijkshoorniae recovered from market meat in Peru.

Species of the Acinetobacter calcoaceticus-Acinetobacter baumannii complex are important human pathogens which can be recovered from animals and food, potential sources for their dissemination. The aim of the present study was to characterise the Acinetobacter isolates recovered from market meat samples in Peru. From July through August 2012, 138 meat samples from six traditional markets in Lima were cultured in Lysogeny and Selenite broths followed by screening of Gram-negative bacteria in selective media.