Staph epidermidis thrive as Gram-positive cocci in clusters.
-They are Coagulase-negative. Catalase-positive.
-Coagulase negative Staph are the most common cause of nosocomial bloodstream infections
-They reside on the human skin and can enter the bloodstream at the site of intravenous catheters
-They cause pyogenic infections on prosthetic implants such as heart valves, pacemakers, and hip joints
St-Treatment: Vancomycin plus either rifampin or an aminoglycoside.