MRSA Outbreak


A MRSA outbreak is the occurrence of 3 or more related MRSA infections. The infections are related because they stem from a common source. The source is the person from whom the bacteria initially spread. 

Note: Outbreaks occur with both community-associated MRSA and healthcare-associated MRSA

Confined Groups 

  • MRSA outbreaks occur more frequently in confined groups. Increased personal contact presents greater opportunity for the spread of MRSA bacteria. Confined groups include: 
    • Schools
    • Dormitories
    • Long-term care facilities
    • Correctional facilities

Prompt Action Required

  • MRSA outbreaks require prompt action, usually with the assistance of the local health department. The goal is to: 
    • Isolate the source, and
    • Prevent spread of infection.