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Updated: Jun 5, 2026

Establishment and Characterization of UTI and CAUTI in a Mouse Model
Published on: June 23, 2015
Streptococcus pneumoniae in urinary tracts of children with chronic kidney disease
Irene Burckhardt1, Stefan Zimmermann
1Department for Infectious Diseases, Microbiology and Hygiene, University of Heidelberg, Heidelberg, Germany. irene.burckhardt@med.uni-heidelberg.de
Insights
Streptococcus pneumoniae rarely causes urinary tract infections. However, this study found high levels of S. pneumoniae in the urine of three children with pre-existing urinary tract abnormalities.
Area of Science:
- Pediatric infectious diseases
- Urology
- Microbiology
Background:
- Streptococcus pneumoniae is a common cause of pneumonia and meningitis.
- It is not typically associated with urinary tract infections (UTIs).
Observation:
- Three pediatric patients with underlying urinary tract abnormalities were identified.
- These patients presented with significant bacteriuria (≥10⁴ CFU/mL) of S. pneumoniae.
Findings:
- The presence of S. pneumoniae in urine, especially in high counts, can occur in children with structural urinary tract abnormalities.
- Clinical presentations associated with S. pneumoniae UTIs can vary.
Implications:
- This case series suggests S. pneumoniae should be considered in the differential diagnosis of UTIs in children with urinary tract abnormalities.
- Further research is warranted to understand the pathogenesis and clinical significance of S. pneumoniae UTIs in this population.
Abstract:
Streptococcus pneumoniae is not commonly considered an agent of urinary tract infections. We report 3 children with urinary tract abnormalities who had high numbers of S. pneumoniae in their urine (≥10⁴ CFU/mL) and varying clinical symptoms.
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