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Gram positive cocci in clusters, Coagulase positive
Staph aureus is a ubiquitous organism that colonizes the skin/nares and can cause invasive disease.
MRSA risk factors include health care exposure (hospitalization, hemodialysis), antimicrobial use, incarceration, IDU, shared equipment and others
Highly virulent organism; infection manifests as pyogenic skin and soft tissue infection, MSK infection, endocarditis, abscess, pneumonia, infection of prosthetic devices and others
MSSA: Standard precautions.