Gram-positive, cluster-forming coccusnonmotile, nonsporeforming facultative anaerobefermentation of glucose produces mainly lactic acidferments mannitol (distinguishes from S. epidermidis)catalase positivecoagulase positivegolden yellow colony on agarnormal flora of humans found on nasal passages, skin and mucous membranespathogen of humans, causes a wide range of suppurative infections, as well as food poisoning and toxic shock syndrome