BACKGROUND The effect of large-scale expanded surveillance for methicillin-resistant Staphylococcus aureus (MRSA) on health care-associated MRSA disease is not known. OBJECTIVE To examine the effect of 2 expanded surveillance interventions on MRSA disease. DESIGN Observational study comparing rates of MRSA clinical disease during and after hospital… (More)
We developed, validated, and implemented real-time polymerase chain reaction (PCR) detection of the femA gene for Staphylococcus aureus and the mecA gene for methicillin resistance directly from BACTEC (Becton Dickinson, Sparks, MD) blood culture bottles showing gram-positive cocci in clusters. For the 332 positive blood cultures tested, the assay had 100%… (More)
Invasive and skin community-associated (CA)-methicillin-resistant Staphylococcus aureus isolates from children were matched with invasive CA-methicillin-sensitive S. aureus strains during 2000-2004. Isolates were analyzed for presence of Panton-Valentine leukocidin. A USA400 lineage clone (n = 6) and the predominant USA300 lineage clone emerged.
The impact of active surveillance of patients at risk for infection with vancomycin-resistant enterococci (VRE) was examined, and VRE bacteremia rates and the degree of VRE clonality in 2 similar neighboring hospitals were compared. Hospital A did not routinely screen patients for VRE rectal colonization; hospital B actively screened high-risk patients.… (More)
Antimicrobial therapy can increase the colonization density of gastrointestinal vancomycin-resistant enterococci (VRE). Among previously VRE-colonized patients, we evaluated VRE colonization before and after initiation of antimicrobial therapy by means of polymerase chain reaction (PCR) and culture. Perianal swab samples were obtained at admission to the… (More)