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Updated: Jul 10, 2026

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
Published on: February 9, 2011
Does nasal colonization or mupirocin treatment affect recurrence of methicillin-resistant Staphylococcus aureus skin
Joseph Rahimian1, Raymond Khan, Keith A LaScalea
1Department of Infectious Diseases, St. Vincent's Hospital, Manhattan, New York Medical College, New York, New York, USA.
Abstract:
Some patients with community-associated methicillin-resistant Staphylococcus aureus skin and skin structure infections have experienced frequent recurrences. We performed a retrospective study and determined that the presence of nasal colonization did not affect recurrence and nasal mupirocin treatment marginally decreased recurrence.
Insights
Recurrent skin infections caused by methicillin-resistant Staphylococcus aureus are common. Nasal colonization did not impact recurrence, while nasal mupirocin treatment showed a slight decrease in recurrent infections.
Area of Science:
- Infectious Diseases
- Dermatology
- Microbiology
Background:
- Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) causes skin and skin structure infections.
- Recurrent infections pose a significant challenge in managing CA-MRSA.
- Nasal colonization is a potential reservoir for Staphylococcus aureus.
Purpose of the Study:
- To investigate the impact of nasal colonization on recurrence of CA-MRSA skin infections.
- To evaluate the efficacy of nasal mupirocin treatment in reducing recurrence.
Main Methods:
- Retrospective study design.
- Analysis of patient data on CA-MRSA skin infections.
- Assessment of nasal Staphylococcus aureus colonization status.
- Evaluation of recurrence rates with and without nasal mupirocin treatment.
Main Results:
- Nasal colonization with Staphylococcus aureus did not significantly affect the recurrence of skin and skin structure infections.
- Nasal mupirocin treatment resulted in a marginal decrease in the recurrence of these infections.
Conclusions:
- Nasal Staphylococcus aureus colonization is not a predictor of recurrence for CA-MRSA skin infections.
- Nasal mupirocin may offer a slight benefit in preventing recurrent CA-MRSA skin infections, warranting further investigation.
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