this study investigated the antibacterial resistance among enterococci isolated in tehran hospitals. a total of 277 enterococcus faecalis, 123 enterococcus faecium and 13 isolates of other enterococcal strains were collected from 1 march 2002 to 15 april 2004 from three teaching hospitals of tehran university of medical sciences. the minimum inhibitory concentrations (mic) of tested antibiotics...

results disk diffusion agar showed that 96 strains (48%) were resistant to gentamicin, 89 (44.5%) to ciprofloxacin, 127 (63.5%) to erythromycin, 142 (71%) to tetracycline, 11 (5.5%) to teicoplanin, 32 (16%) to vancomycin, none to linezolid and 96 (48%) to co-trimoxazole. the mics of the resistant isolates were as follows; 88 strains had mic ≥ 32 μg/ml to vancomycin and 59 strains had mic ≥ 32 μ...

patients and methods one hundred thirty-eight clinical specimens collected from different wards of imam reza hospital were identified to the species level by biochemical tests. antimicrobial susceptibility tests against kanamycin, teicoplanin, streptomycin, imipenem, ciprofloxacin, and ampicillin were performed by the disk diffusion method. the minimum inhibitory concentrations of gentamicin, s...

aim & background : enterococci infections are public health growing concern due to the glycopeptide antibiotics resistance especially vancomycin. genes, vana, b, and h, are contributed to the influence of vancomycin-resistant enterococci (vre). this investigation aims at exploring the vre frequency and the rate of each genes in isolated enterococci from gastroenteritis patients in central regio...

background and objectives: infection with vancomycin-resistant enterococci (vre) has caused a therapeutic problem. vana and vanb resistant types are the predominant phenotypes among vancomycin resistant enetrococci. transposon 1546 (tn1546) harboring the vana gene cluster, plays an important role in the horizontal transfer of vana gene. in this study, we examined the phenotypic and genotypic di...

BACKGROUND Vancomycin-resistant enterococci colonization has been reported to increase the risk of developing infections, including bloodstream infections. AIM In this study, we aimed to share our experience with the vancomycin-resistant enterococci bloodstream infections following gastrointestinal vancomycin-resistant enterococci colonization in pediatric population during a period of 18 mon...

BACKGROUND Vancomycin resistant enterococci are a frequent cause of nosocomial infections and their presence among farm animals is unwanted. Using media supplemented with vancomycin an increase in the proportion of samples from Swedish broilers positive for vancomycin resistant enterococci has been detected. The situation at farm level is largely unknown. The aims of this study were to obtain b...

Increased prevalence of Vancomycin-resistant Enterococci and their ability to transfer Vancomycin resistance genes to other bacteria have made them a subject of close scrutiny and intense investigation. This study was performed to determine the prevalence of Vancomycin-resistant Enterococci occurrence in children hospitalized in a Hospital in Tehran, Iran. During 12 months, we collected 780 sto...

Enterococci, as the major cause of nosocomial infections, have been shown to have an increase in drug resistance during the past two decades. TheEntrococcalemergence of Vancomycin-resistant is very important nowadays. The purpose of this study was to determine the drug sensitivity of Enterococcus faecalis and Enterococcus faecium species against Vancomycin, Tetracycline, Gentamicin, Erythromyci...