Fig. 1

Presence/absence of virulence genes in UPEC strains isolated from 72 postmenopausal women. PCR was performed to amplify genes, then visualized using gel electrophoresis. UTI89 used as positive control; cysG used as the reference gene. Fisher’s exact test performed to compare the prevalence of each gene in recurrent and single episode strains (fimH p value > 0.999, ompT p value = 0.5414, hlyA p value = 0.1073)