Urinary Tract Infection Caused by Capnophilic Escherichia coli
Author Information
Author(s): Tena Daniel, González-Praetorius Alejandro, Sáez-Nieto Juan Antonio, Valdezate Sylvia, Bisquert Julia
Primary Institution: University Hospital of Guadalajara
Hypothesis
Can a strain of Escherichia coli be CO2 dependent?
Conclusion
A capnophilic strain of E. coli was identified as the cause of a urinary tract infection in a 77-year-old woman.
Supporting Evidence
- The strain was identified as E. coli after specific incubation conditions.
- The isolate was susceptible to multiple antimicrobial agents.
- Incubation in CO2 is not standard for routine urine cultures.
Takeaway
This study found a rare type of E. coli that needs carbon dioxide to grow, which caused a urinary infection in an elderly woman.
Methodology
The isolate was cultured on specific agar plates and incubated in a CO2 atmosphere to identify its characteristics and antimicrobial susceptibility.
Limitations
The real incidence of UTIs caused by capnophilic E. coli may be underestimated due to standard urine culture practices not including CO2 incubation.
Participant Demographics
77-year-old woman
Digital Object Identifier (DOI)
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