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Updated: Aug 16, 2026

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
Published on: February 9, 2011
Community-associated methicillin-resistant Staphylococcus aureus
1Office of Antimicrobial Resistance, National Center for Infectious Diseases, Centers for Disease Control and Prevention, Atlanta, Georgia 30333, USA. jtw5@cdc.gov
Abstract:
Historically, infection with strains of methicillin-resistant Staphylococcus aureus (MRSA), which are usually multidrug-resistant, has been acquired by persons in hospitals, nursing homes, and other health care institutions. These infections are known as health care-associated MRSA infections. Community-associated MRSA (CA-MRSA) infection, which bears significant similarities to and differences from health care-associated MRSA infection, appears to be on the rise and has been described in several well-defined populations, such as children, incarcerated persons, Alaskan Natives, Native Americans, Pacific Islanders, sports participants, and military personnel. CA-MRSA infection has caused severe morbidity and death in otherwise healthy persons. Proven, reproducible strategies and programs for preventing the emergence and spread of CA-MRSA are lacking. Further surveillance and epidemiological and clinical studies on CA-MRSA infections are necessary for documenting the extent of the problem and for developing and evaluating effective prevention and control efforts.
Insights
Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) infections are increasing in healthy individuals, causing severe illness and death. Effective prevention strategies are currently lacking, necessitating further research.
Area of Science:
- Infectious Diseases
- Microbiology
- Public Health
Background:
- Methicillin-resistant Staphylococcus aureus (MRSA) infections traditionally occur in healthcare settings (HA-MRSA).
- A rise in community-associated MRSA (CA-MRSA) infections is observed in specific populations.
- CA-MRSA infections can lead to severe outcomes in otherwise healthy individuals.
Purpose of the Study:
- To highlight the increasing prevalence and impact of CA-MRSA.
- To identify populations at risk for CA-MRSA.
- To underscore the need for effective prevention and control strategies.
Main Methods:
- Review of existing epidemiological data and clinical observations.
- Comparison of CA-MRSA with HA-MRSA characteristics.
- Identification of at-risk populations and clinical manifestations.
Main Results:
- CA-MRSA infections are emerging in diverse community groups, including children and military personnel.
- These infections are associated with significant morbidity and mortality.
- Current prevention and control strategies for CA-MRSA are insufficient.
Conclusions:
- CA-MRSA represents a growing public health concern.
- Further epidemiological and clinical studies are crucial.
- Development and evaluation of targeted prevention efforts are urgently needed.
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