<unk>  is a member of the coagulase-negative staphylococci (CoNS). It is part of the skin flora of humans, and its largest populations are usually found at the axillae, perineum, and inguinal areas.<unk>  also colonizes primates and domestic animals. It is a well-known opportunistic pathogen, and is the second-most frequently isolated CoNS (S. epidermidis is the first). Infections can be localized or systemic, and are often associated with the insertion of medical devices. The highly antibiotic-resistant phenotype and ability to form biofilms make<unk>  a difficult pathogen to treat. Its most closely-related species if<unk>  borealis.
Staphylococcus haemolyticus
Staphylococcus saprophyticus
Bacteroides ureolyticus
Staphylococcus aureus
Pseudomonas aeruginosa
Bacillus cereus
Streptococcus bovis
Bacteroides caccae