Staphylococcus aureus is a human commensal bacterium and a prominent cause of infections globally. The high incidence of S. aureus infections is compounded by the ability of the microbe to readily acquire resistance to antibiotics. In the United States, methicillin-resistant S. aureus (MRSA) is a leading cause of morbidity and mortality by a single infectious agent. Therapeutic options for seve...

background and objective: vancomycin is frequently the antibiotic of choice for the treatment of infections caused by methicillin-resistant staphylococcus aureus (mrsa). for the last years, the incidence of vancomycin-intermediate s. aureus (visa) and vancomycin-resistant s. aureus (vrsa) has been increased in various parts of the world. the present study was carried out to determine the presen...

background & objectives:staphylococcus aureus is one of the major causes of nosocomial infections. recently, increase in its various drug-resistant strains, has increased health problems. incidence of vrsa (vancomycin resistant staphylococcus aureus) strains has created many concerns about the treatment of these bacterial infections. the aim of this study was to determine the frequency of staph...

The objective of this study was to investigate screening methodologies, to detect Staphylococcus aureus strains with decreased susceptibility to vancomycin. Three methods were used to screen 160 Staphylococcus aureus clinical isolates along with ATCC quality control strains. Subsequently, MIC of all these 160 strains were determined by NCCLS methodology. The MIC of all the 160 clinical isolates...

The study was carried out on (120) various clinical samples collected from patients attended Al Salam and Al-Khansa Hospitals the Public Health Laboratory in Mosul city during of 4 months (September - December 2019). Samples were cultured Mannitol Salt Agar medium, 105 give a positive result (grew bacteria). 50 isolates fermented mannitol sugar, at rate 47.6%, depending phenotypic characteristi...

One hundred methicillin-resistant Staphylococcus aureus (MRSA) strains, isolated between 1983 and 1999, were tested alongside the vancomycin hetero-resistant S. aureus (hVRSA) strain Mu 3, and vancomycin-resistant S. aureus (VRSA) strain Mu 50, for their resistance to vancomycin. This was achieved using the screening method described by Hiramatsu, gradient plates, agar incorporation, standard E...

The present investigation was carried out to evaluate the antibacterial activity of leaf and root silver nanoparticles synthesized using different solvents. According our studies AgNPs Strychons nux vomica from solvent extract revealed possess significant comparing exhibited by extract. Among AgNPS tested, ethyl acetate showed highest inhibitory acetone methanol extracts. based zone inhibition ...

The in vitro susceptibilty of Staphylococcus aureus to vancomycin was evaluated from impatients at a Brazilian University Hospital by the Etest and a screening method. No vancomycin intermediate (VISA) or vancomycin resistant (VRSA) S. aureus isolate was identified. Three patients presented as heteroresistant VISA (h-VISA) isolates but none of them received vancomycin previously.