#urinary_tract_infection__urinarytractinfection  any infection of any of the organs of the urinary tract
  supertype:  inflammatory_disease  a disease characterized by inflammation
  subtype:  cystitis  inflammation of the urinary bladder and ureters
  subtype:  pyelonephritis  inflammation of the kidney and its pelvis caused by bacterial infection
     subtype:  acute_pyelonephritis  pyelonephritis resulting from the spread of a bladder infection
     subtype:  chronic_pyelonephritis  pyelonephritis that develops slowly and can lead to renal failure if untreated; often associated with a kidney stone or with narrowing of the urinary passageways
  subtype:  urethritis  inflammation of the urethra; results in painful urination
     subtype:  nongonococcal_urethritis__NGU  sexually transmitted urethritis (usually caused by chlamydia)
     subtype:  nonspecific_urethritis__NSU  inflammation of the urethra of unknown cause

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