“…The most common are Enterococcus faecalis and Staphylococcus aureus (Nickel & Costerton, 1992;Bergman, 1994;Bundrick et al, 2003;Pronk et al, 2006;Benway & Moon, 2008). The role of coagulase-negative staphylococci and Corynebacterium sp., so far recognized as nonpathogenic, is also discussed (Nickel & Costerton, 1992;Bergman, 1994;Riegel et al, 1995;Nickel, 2000;Bundrick et al, 2003;Pronk et al, 2006;Benway & Moon, 2008). Atypical bacteria such as Chlamydia trachomatis, Mycoplasma hominis, Mycoplasma genitalium, and Ureaplasma urealiticum were also isolated from the genitourinary tracts of CBP patients (Shurbaji et al, 1988;Ohkawa et al, 1993;Potts et al, 2000;Krieger & Riley, 2002;Benway & Moon, 2008).…”