Gram positive cocci in clusters. Coagulase negative.
Blood stream infections
Prosthetic joint infections
Skin and soft tissue infections
Coagulase negative but clinically behaves more like Staphylococcus aureus and is more virulent than other coagulase-negative Staphylococci.
Bacteremia - ID consult strongly recommended, this should NEVER be considered a contaminant if found in the blood.