Staphylococcus hominis Group 3
An aerobic gram-positive coccus that produces either a colony with a yellow or yellow-orange center with white or gray concentric rings, or an unpigmented gray-white or white colony. It does not produce free coagulase or bound coagulase but does produce weak hemolysins. This isolate has been identified as belonging to Group 3 using the API classification system. It is part of the normal flora of the skin, skin glands, anterior nares, and mucous membranes of humans. It is an opportunistic pathogen for humans causing conjunctivitis, urinary tract infections, wound infections, and septicemia.