S. epidermidis is a commensal of the skin, but can cause severe infections in immunosuppression|immune-suppressed patients and those with central lines.
S. saprophyticus is part of the normal vaginal flora, is predominantly implicated in urinary tract (e.g. UTI, pyelonephritis) infections.<unk>  hominis
Rarely S. lugdunensis, S. schleiferi, and S. caprae cause infection.
Staphylococcus
Streptococcus Genus
Clostridium
Legionella
Acinetobacter
Brucella
Viridans-Group Streptococci
Klebsiella