We evaluated the accuracy of the VITEK 2 fully automated system to detect andidentify glycopeptide-resistant enterococci (GRE) compared to a reference agardilution method. The sensitivity of vancomycin susceptibility testing with VITEK 2for the detection of vanA, vanB, and vanC1 strains was 100%. The sensitivity ofvancomycin susceptibility testing of vanC2 strains was 77%. T...

Los enterococos se han convertido en patógenos oportunistas refractarios a la farmacoterapia antimicrobiana. Con el objetivo de identificar las especies y analizar resistencia Enterococcus spp vancomicina linezolid, analizaron 721 cepas obtenidas pacientes del Hospital Especialidades “José Carrasco Arteaga”- Ecuador, entre enero 2019-diciembre 2021. La especie más frecuente fue E. faecalis (73,...

A set of well characterized strains, collected in Polish hospitals, including Gram-negative (n = 93) and Gram-positive (n = 90) isolates was used in the study. The VITEK 2 AST-cards were used in the analysis according to the manufacturer's recommendations. Comparison of the susceptibility data obtained by the standard method and by VITEK 2 cards proved concordant in 99% of cases. Clinically imp...

BACKGROUND Bacterial species from the ESKAPE group (i.e. Enterococcus faecium, Staphylococcus aureus, Klebsiella pneumoniae, Acinetobacter baumannii, Pseudomonas aeruginosa and Enterobacter species) are frequently resistant to antibiotics. The purpose of this study was to monitor the incidence of ESKAPE pathogens at the intensive care unit (ICU) of a tertiary care hospital in Monterrey, Mexico....

The main goal of the study was to analyse the occurrence of antibiotic-resistant bacterial strains in poultry in the Czech Republic in 1999–2000. The resistance was determined in 128 selected Escherichia coli, 88 Staphylococcus sp. and 228 Enterococcus sp. strains. The bacterial species were selected to represent gramnegatives and grampositives, the common part of intestinal microflora and also...

The World Health Organization (WHO) has defined Vancomycin intermediate Staphylococcus aureus (VISA) and resistant (VRSA) as high priority pathogens. VISA VRSA are produced by different mechanisms, hence cannot convert to VRSA. Consequently, upon vancomycin treatment of VSSA isolates, there can be emergence but not its conversion But we observed that when (MIC ≤2 µg/mL) lacking vanA or vanB gen...

Recent data indicates an increasing rate of vancomycin resistance in clinical enterococcal isolates worldwide. The nosocomial enterococci are likely to harbor virulence elements that increase their ability to colonize hospitalized patients. The aim of this study was to characterize virulence determinants in vancomycin-resistant enterococci (VRE) obtained from various clinical sources.During the...