Microbiology-urinary tract infections

Uncomplicated:

E. coli (80%), S saprophyticus (CID 2004;39:75). Proteus Klebsiella

In healthy, nonpregnant women:

lactobacilli, enterococci, Group B strep, and coag-neg staph (except S. saprophyticus) are likely contaminants (Annals 2012;156:ITC3).

Complicated:

as above + PsA, enterococci, staph (uncommon 1º urinary pathogen w/o catheter or recent instrumentation; ? bacteremia w/ hematogenous spread). ↑ MDR.

Catheter-associated:

• E. coli most prevalent,
• candida,
• Enterococcus
• PsA
• other GNR

Urethritis:

• Chlamydia trachomatis,
• Neisseria gonorrhoeae,
• Ureaplasma urealyticum,
• Trichomonas vaginalis,
• Mycoplasma genitalium,
• HSV