Pathogen-specific^a genes expressed in the majority of urines from women with UTI.

aPathogen-specific is defined as genes absent from E. coli K12 strain MG1655. bNumber of patient isolates for which the indicated gene is considered expressed (microarray signal intensity is at least four-fold above background). *Indicates genes present in 10/10 UPEC isolates and 0/3 fecal E. coli isolates as determined by comparative genomic hybridization [88].