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Aerococcus urinae in urinary tract infections
Journal of Clinical Microbiology
|April 4, 2000
Summary
Aerococcus urinae, a gram-positive coccus, is often misidentified, leading to inappropriate treatment for urinary tract infections (UTIs). Early recognition and accurate identification are crucial for effective management of this rare pathogen.
Area of Science:
- Microbiology
- Clinical Medicine
Background:
- Aerococcus urinae is an infrequently reported bacterial pathogen.
- Identification challenges may contribute to its underreporting.
Observation:
- A. urinae, a gram-positive coccus, exhibits specific growth and biochemical properties.
- It can be misidentified as Streptococcus, Enterococcus, or Staphylococcus due to shared characteristics and limited database inclusion.
Findings:
- Two cases of urinary tract infections (UTIs) caused by A. urinae are presented.
- Isolates were characterized using morphology, biochemical tests, fatty acid analysis, 16S rRNA sequencing, and antibiotic susceptibility testing.
- Patients were typically elderly males with predisposing conditions presenting with UTI.
Implications:
- A. urinae resistance to sulfonamides necessitates careful antibiotic selection to avoid treatment failure.
- Clinicians and microbiologists must consider A. urinae in UTI diagnostics for timely and appropriate patient management.
- Accurate identification is vital to prevent severe complications, including mortality.