Staphylococcus aureus is a ubiquitous organism that colonizes the skin/nares and can cause invasive disease.
MRSA risk factors include:
Health care exposure
Antimicrobial use
Incarceration
Intravenous drug abuse
Purulent skin and soft tissue infection
Musculoskeletal infection
Infective endocarditis
Infection of prosthetic devices
Pneumonia
