The ability of enterococci to cause severe disease in humans and their relative resistance to chemotherapeutic agents make it desirable to rapidly differentiate these organisms from other streptococci. We developed and evaluated a test that within 2 h distinguishes enterococci from other alpha-, beta-, or nonhemolytic streptococci in a buffered solution containing 0.2% esculin and 5% sodium chl...

BACKGROUND The genus Enterococcus is of increasing significance as a cause of nosocomial infections, and this trend is exacerbated by the development of antibiotic resistance. OBJECTIVES The aim of the present study was to estimate the potential virulence factors in enterococci and to ascertain their prevalence in Malaysian hospitals. MATERIAL AND METHODS The study comprised 222 enterococca...

ABST RACT In this study it was aimed to investigate the potential virulence genes (gelatinase [gelE]), adhesion-associated protein [EfaAfs], enterococcal surface protein [esp], cytolysins [cylA, cylM, cylB], sex pheromones [cpd, cob, ccf], aggregation substance [aggA], enhanced expression of pheromone [eep]) of Enterococcus faecalis strains isolated from mastitic bovine milk samples with polyme...

BACKGROUND The incidence of infection and intestinal colonization with vancomycin resistant enterococci (VRE) is increasing in many countries in the last decade. Concerning the difficult antimicrobial treatment of infections caused by VRE, decreasing the incidence and prevalence of these infections is an important factor in VRE-induced morbidity and mortality control. AIM To determine the pre...

The activity of teichomycin A2 was compared with that of vancomycin in vitro against clinical isolates of staphylococci and enterococci. Teichomycin A2 was more active than vancomycin active against all isolates tested. Synergistic studies also demonstrated that teichomycin A2 combined with rifampin is more active than vancomycin combined with rifampin against Staphylococcus aureus and Staphylo...

Tylosin phosphate is a macrolide commonly administered to cattle in North America for the control of liver abscesses. This study investigated the effect of in-feed administration of tylosin phosphate to cattle at subtherapeutic levels and its subsequent withdrawal on macrolide resistance using enterococci as an indicator bacterium. Fecal samples were collected from steers that received no antib...

Enterococcus faecalis (E. faecalis) and E. faecium faecium) are commensals of the gastrointestinal biota humans animals considered opportunistic pathogens. This study aimed to improve knowledge about isolated from meat. To this end, 104 meat samples were collected sheep, goats, cattle, calves Shahrekord local markets in Iran. Presumptive colonies subjected identification tests. Antimicrobial su...

Enterococci are among the common organisms associated with hospital-acquired infections. We examined in vitro activities of different antibiotics to 103 enterococcal isolates. Minimal inhibitory concentrations (MICs) of penicillin G, ampicillin, gentamicin, ciprofloxacin, ofloxacin, levofloxacin, grepafloxacin, trovafloxacin and gemifloxacin were determined by broth microdilution testing method...

Mating experiments have shown that high-level resistance (minimal inhibitory concentration greater than 2,000 microgram/ml) to streptomycin and kanamycin, and resistance to penicillin-streptomycin and penicillin-kanamycin synergism are transferable by conjugation from resistant clinical isolates of enterococci to a sensitive recipient strain. Cesium chloride-ethidium bromide ultracentrifugation...

enterococci are important because of their role as the leading cause of nosocomial infections which have a significant role in the dissemination and persistence of antimicrobial resistance genes. methods: in this study, we determined the distribution of enterococcal species in the sewage treatment plants in iran. furthermore, we improved a rapid and specific pcr method using primers (soda and d...