Related Experiment Video
Updated: May 18, 2026

Subcutaneous Infection of Methicillin Resistant Staphylococcus Aureus (MRSA)
Published on: February 9, 2011
Community associated methicillin-resistant Staphylococcus aureus
1Department of Internal Medicine, Infectious Diseases Unit, UZ Brussel, Belgium.
Abstract:
Community associated methicillin resistant Staphylococcus aureus (CA-MRSA) is an emergent infectious pathogen that might become an important public-health problem. Indeed, unique strains of S. aureus that combine specific virulence factors with resistance against frequently used antibiotics have been associated with severe community acquired infections in otherwise healthy and often younger people. This is especially the case in the USA, were these strains now represent a major part of staphylococcal infections in the outpatient setting. But, severe infections with CA-MRSA strains have already been reported in Belgium as well. This article summarizes the current knowledge on CA-MRSA as an emergent pathogen and discusses its clinical management.
Insights
Community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) is an emerging infectious pathogen causing severe infections in healthy individuals. This article reviews current knowledge and clinical management of CA-MRSA.
Area of Science:
- Infectious Diseases
- Microbiology
- Public Health
Background:
- Emergence of unique Staphylococcus aureus strains with combined virulence and antibiotic resistance.
- Increasing prevalence of community-associated methicillin-resistant Staphylococcus aureus (CA-MRSA) infections.
Observation:
- CA-MRSA strains are associated with severe community-acquired infections.
- These infections disproportionately affect healthy, younger individuals.
- CA-MRSA is a significant cause of outpatient staphylococcal infections, particularly in the USA.
Findings:
- Unique CA-MRSA strains possess specific virulence factors and antibiotic resistance.
- These strains are responsible for a substantial proportion of staphylococcal infections in outpatient settings.
- Severe CA-MRSA infections have been reported in both the USA and Belgium.
Implications:
- CA-MRSA represents a growing public health concern due to its emergent nature.
- Understanding CA-MRSA epidemiology and characteristics is crucial for effective clinical management.
- Timely diagnosis and appropriate treatment strategies are essential to combat CA-MRSA infections.
Related Concept Videos
Clinical Significance of Antibiotic Resistance
Staphylococcal Skin Infections
Mechanism of Antibiotic Resistance in MRSA
Defense Against Bacterial Pathogens
Phagocytes
Phagocytes are the frontline soldiers of the immune system. They include neutrophils and macrophages. Neutrophils are the most abundant type of white blood cell and are quickly mobilized to the site of infection. Macrophages are larger cells that patrol...
Development of Antibiotic Resistance
Mismatch Repair

