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Life sciences/Microbiology/Bacteriology/Bacterial genetics/Bacterial genomes

Every year, millions of women are affected by the pain and discomfort of urinary tract infections or UTIs. For some, the infections may return even after treatment, recurring two or more times within a six-month period.

Now, researchers have found that recurrent UTIs may be caused by particular strains of Escherichia coli bacteria that can travel back and forth between the gut and the urinary tract with relative ease. The research appears in the 8 May issue of the journal Science Translational Medicine.