We investigated the antibiotic susceptibility of glycopeptide-resistant enterococci (GRE). Seventy consecutive GRE were tested. Sixty-two isolates were identified as Enterococcus faecium (88.6%), and 8 (11.4%) as Enterococcus faecalis. All strains were susceptible to linezolid and daptomycin, while 17.1% (12/70) and 11.4% (8/70) were resistant to quinupristin/dalfopristin (QD) and tigecycline, ...

The prevalence of esp, a gene associated with infection-derived and outbreak strains, in enterococcal blood isolates from 2002 was determined. Fifty-five of 137 (40.1%) Enterococcus faecalis isolates, 30 of 58 (51.7%) E. faecium isolates, 1 of 1 E. raffinosus isolate, 0 of 4 E. gallinarum isolates, and 0 of 1 E. casseliflavus isolate were positive. esp wasn't associated with vancomycin resistan...

Enterocin P is a pediocin-like, broad-spectrum bacteriocin which displays a strong inhibitory activity against Listeria monocytogenes. The bacteriocin was purified from the culture supernatant of Enterococcus faecium P13, and its molecular mechanism of action against the sensitive strain E. faecium T136 was evaluated. Although enterocin P caused significant reduction of the membrane potential (...

The genes encoding the VanA type of vancomycin resistance in enterococci are located on elements related to Tn1546 (1). Heterogeneity of Tn1546 in Enterococcus faecium has been previously reported (3, 4, 6, 9, 10, 12, 14, 15, 16) and includes deletions, insertions, and mutations. In this study, Tn1546 elements from 43 vanA-containing isolates of different enterococcal species with diverse pulse...

conclusions: the combination of plasmid profiling and php techniques revealed the presence of diverse population of vre in sewage treatment plant in tehran. furthermore, the results showed that the php technique is a reliable method in determining the vre clonal diversity. results: all isolates were found to be resistant to erythromycin, ampicillin and ciprofloxacin. the pcr analyses showed tha...

In this study, thermal processes were developed for cocoa powder against Salmonella and Listeria monocytogenes in a pilot Radiofrequency (RF) unit validated using their respective surrogates Enterococcus faecium NRRL B-2354 innocua. For 1.0 kg samples, RF heating to 90 °C provided 1.74–1.84 log reduction of E. faecium. A 48 min holding post-RF an additional 3.65 2.24 log10 CFU/g insulated non-i...

In recent years, vancomycin-resistant enterococci, especially Enterococcus faecium has emerged as an important nososcomial pathogen and represents a serious threat to patients with impaired host defences. We report infection with vancomycin-resistant Enterococcus faecium in a 3-year-old child with patent ductus arteriosus. The organism, isolated from a central venous catheter tip, exhibited a h...

From 125 separate cloacal cultures from three turkey flocks fed virginiamycin, 104 Enterococcus faecium and 186 Enterococcus faecalis isolates were obtained. As the turkeys aged, there was a higher percentage of quinupristin-dalfopristin-resistant E. faecium isolates, with isolates from the oldest flock being 100% resistant. There were no vancomycin-resistant enterococci. Results of pulsed-fiel...

background: enterococci have emerged as a major cause of nosocomial infections and within this group, enterococcus faecalis and enterococcus faecium cause the majority of human and livestock enterococcal infections. in this article, we tried to determine antibiotics and metals resistance patterns of e. faecalis and e. faecium strains. methods: one hundred sixty different strains of e. faecalis ...