introduction: one of the most important agents in hospital-acquired infections is staphylococcus aureus. treatment of methicillin-resistant s. aureus (mrsa) infections with decreased susceptibility to vancomycin has recently been more difficult. the aim of this study was to evaluate the possible presence of vancomycin intermediate s. aureus (visa) and vancomycin- resistant s. aureus (vrsa) and ...

Multidrug-resistant (MDR) and pathogenic E. faecium is a crisis in healthcare settings. This survey aimed at antibiotic susceptibility profiling virulence determinants of faecium. study pooled 100 fecal isolates identified by phenotypic molecular tests. Antibiotic ampicillin MIC were determined according to clinical laboratory standards institute (CLSI) 2017. Moreover, biofilm formation was ass...

We compared PCR to conventional culture for the detection of vancomycin-resistant enterococci (VRE) in 30,835 rectal samples over a 3-year period. The positive and negative predictive values of vanB PCR were 1.42% and 99.9%, respectively. A positive vanB result by PCR is poorly predictive and necessitates culture for differentiation of VRE-positive and -negative individuals.

Methicillin-Resistant Staphylococcus aureus (MRSA), Vancomycin-Resistant (VRSA), and Enterococci‌ (VRE) Contamination of Food Samples in Iran: A Systematic Review Meta-Analysis

Vancomycin-resistant Staphylococcus aureus (VRSA) infections, which are always methicillin-resistant, are a rare but serious public health concern. We examined 2 cases in Michigan in 2007. Both patients had underlying illnesses. Isolates were vanA-positive. VRSA was neither transmitted to or from another known VRSA patient nor transmitted from patients to identified contacts.

The vanM gene was first found in a vancomycin-resistant Enterococcus faecium (VREm) isolate in Shanghai in 2006. In this study, we found that, in 70 VREm strains isolated in nine Shanghai hospitals from 2006 to 2014, vanM was more prevalent than the vanA gene (64.3% [45/70] versus 35.7% [25/70]). The vanM-type isolates showed similar antimicrobial susceptibility patterns with the vanA types. Th...

Vancomycin-resistant Enterococcus faecium has emerged as a multidrug-resistant pathogen in hospital settings. Here, we present the draft genome sequence of a high-level vancomycin-resistant strain, E. faecium ATCC 51559, which is employed as a standard laboratory vanA genotype-positive control strain for clinical and laboratory studies.

Emergence of Vancomycin Intermediate Staphylococcus aureus (VISA) and Vancomycin resistant Staphylococcus aureus (VRSA), though reported less frequently , is a serious matter of concern. It perhaps indicates the impending development and spread of VRSA posing the greatest risk to the patients and threat to the clinicians and microbiologists alike. Article by Chaudhary et al (2010) is interestin...

We examined cloacal samples from poultry raised on nonintensive production farms in Brazil for the presence of vancomycin-resistant enterococci. No VanA- or VanB-containing enterococci were identified in a total of 200 cloacal swabs. The most prevalent species were Enterococcus gallinarum (vanC1; 13.0%) and E. casseliflavus (vanC2/3; 5.5%).