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Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus MRSA
Published on: February 9, 2011
Clinical, Epidemiologic, and Laboratory Aspects of Methicillin-Resistant Staphylococcus aureus Infections
1Department of Pathology, Clinical Microbiology Laboratory, Wake Forest School of Medicine, Winston-Salem, NC, USA. epalave@wakehealth.edu.
Abstract:
Oxacillin-resistant Staphylococcus aureus (abbreviated MRSA for historical reasons) is a major pathogen responsible for both hospital- and community-onset disease. Resistance to oxacillin in most clinical isolates of S. aureus is mediated by PBP2a, a penicillin-binding protein with low affinity to beta-lactams, encoded primarily by the mecA gene. Rapid and accurate methods of susceptibility testing of S. aureus isolates to identify MRSA infections are important tools to limit the spread of this organism. This review focuses on the clinical significance of MRSA infections and new approaches for the laboratory diagnosis and epidemiologic typing of MRSA strains.
Insights
Methicillin-resistant Staphylococcus aureus (MRSA) causes significant infections. New diagnostic and typing methods are crucial for managing MRSA strains and limiting their spread.
Area of Science:
- Microbiology
- Infectious Diseases
- Clinical Diagnostics
Background:
- Oxacillin-resistant Staphylococcus aureus (MRSA) is a major pathogen causing hospital- and community-acquired infections.
- Resistance is primarily mediated by the mecA gene, encoding PBP2a, a beta-lactam-insensitive penicillin-binding protein.
Purpose of the Study:
- To review the clinical significance of MRSA infections.
- To explore novel laboratory diagnostic and epidemiologic typing approaches for MRSA.
Main Methods:
- Literature review focusing on clinical aspects of MRSA.
- Analysis of current and emerging diagnostic techniques for MRSA identification.
- Examination of methods for MRSA strain typing and epidemiology.
Main Results:
- MRSA infections pose a substantial clinical challenge.
- Accurate susceptibility testing is vital for controlling MRSA spread.
- Advancements in laboratory diagnostics and typing are essential for effective MRSA management.
Conclusions:
- Effective management of MRSA requires understanding its clinical impact.
- Rapid and precise diagnostic tools are necessary for timely treatment.
- Improved epidemiologic typing aids in tracking and controlling MRSA outbreaks.
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