nasal mupirocin is found to eradicate effectively methicillin-resistant staphylococcus aureus (mrsa) from colonized patients, but there are concerns about resistant strains. the aim of this study was to detect the mupirocin resistance and nasal carriage of methicillin resistant s. aureus among healthcare workers (hcws) at the university hospitals of tehran.totally 270 nasal swabs were collected...

conclusions similarly to other geographical regions of iran, the sccmec type iii mrsa strain was the most frequently isolated strain from patients in gorgan. staphylococcal cassette chromosome mec type iii showed fewer virulence factors compared to other sccmec types. results the most common sccmec type was type iii, with a frequency rate of 76%, followed by types iv, i, and v, with frequency r...

background methicillin-resistant staphylococcus aureus (mrsa) continues to be a major cause of nosocomial infections. methicillin resistance in s. aureus is caused by the acquisition of the meca gene, located on a mobile genetic element called the staphylococcal cassette chromosome (scc). objectives the aim of this study was to evaluate the presence of the predominant sccmec type present among ...

background methicillin -resistant staphylococcus aureus (mrsa) is associated with serious infections. having the ability of biofilm-formation decrease their susceptibility to antibiotics. objectives the aim of this study was to determine the prevalence of biofilm formation among mrsa isolated from nasal carriers in the beheshti teaching hospital in kashan, iran. materials and methods a cross-se...

OBJECTIVES This study was designed to demonstrate the characteristics of qacA/B-positive Staphylococcus aureus in China. METHODS One hundred and forty-five MRSA and 178 MSSA from clinical specimens from seven hospitals in different regions of China, 70 MRSA from superficial sites of patients and 106 MRSA from environmental samples from an ICU were collected and screened for the presence of th...

In the present study, the effectiveness of a rapid and colorimetric nitrate reductase analysis (NRA) method and resazurin microplate assay (REMA) for rapid determination of methicillin resistance among Staphylococcus aureus was investigated. A total of 275 clinical isolates of S. aureus were included in the present study. Among these isolates, 151 had the mecA gene and were resistant to methici...

We evaluated the activity of ceftobiprole against 100 community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) and 100 hospital-associated MRSA (HA-MRSA) isolates. Eight isolates were evaluated by time-kill studies for kill rate and potential for synergy with tobramycin. Ceftobiprole MIC(50) and MIC(90) values were 1 and 2 microg/ml, respectively, against CA-MRSA and HA-MRSA. ...

BACKGROUND There are few studies in Brazil that address baseline prevalence of MRSA colonization and associated risk factors at hospital admission, or the incidence of nosocomial colonization. We report a prospective study in a tertiary-care, university-affiliated hospital to implement a new MRSA control policy at the institution. METHODS A cohort of randomly selected patients admitted to eme...

The distinction between healthcare-associated MRSA (HA-MRSA) and community-associated MRSA (CA-MRSA) infections has become increasingly blurred. We assessed the molecular characterization and antimicrobial resistance profile for MRSA isolates from blood. Most of all (81.9%) isolates are related to known HA-MRSA and CA-MRSA epidemic lineages, such as, USA300, USA400, USA600, USA800 and USA1100. ...

Livestock-associated methicillin-resistant Staphylococcus aureus (LA-MRSA) have been isolated from a number of livestock species and persons involved in animal production. We investigated the prevalence of LA-MRSA in fattening turkeys and people living on farms that house fattening turkeys. Eighteen (90%) of 20 investigated flocks were positive for MRSA, and on 12 of the farms 22 (37·3%) of 59 ...