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Updated: Aug 8, 2026

Establishment and Characterization of UTI and CAUTI in a Mouse Model
Published on: June 23, 2015
[Prevalence of urinary infections in the community and their susceptibility to cefixime]
F Ferrer Ruscalleda1, S Elía, E García Sánchez
1Servicio de Medicina Interna, Hospital Creu Roja, Barcelona.
Abstract:
The aim of this study was to determine the prevalence of the microorganisms causing uncomplicated acute urinary tract infections in the community and their susceptibility to cefixime and another six antimicrobials in frequent use in Spain. In 1998, we conducted an open, prospective study of 1,000 consecutive patients in five large provincial capitals who had positive urine culture, met the inclusion criteria, and were referred to the microbiology laboratory for urinalysis on an outpatient basis. The procedures for sample collection, transportation, laboratory techniques and the evaluation criteria were the same in all cases. The prevalence of the microorganisms found was similar to that published in the last few years by authors of various studies in Spain. Escherichia coli was the most frequently isolated bacteria (82.67% of the Gram-negative bacteria). The decrease in susceptibility of the isolates to the antimicrobials most empirically used was confirmed in these infections at the general practitioner's. Therefore, it is suggested that cefixime, an oral cephalosporin with the greatest activity against these microorganisms, is useful.
Insights
This study investigated common urinary tract infection (UTI) pathogens and their antibiotic resistance in Spain. Escherichia coli was the most prevalent pathogen, showing decreased susceptibility to common antibiotics, highlighting cefixime
Area of Science:
- Microbiology
- Infectious Diseases
- Pharmacology
Context:
- Uncomplicated acute urinary tract infections (UTIs) are common community-acquired infections.
- Antimicrobial susceptibility patterns are crucial for effective empirical treatment.
- Previous studies in Spain indicated evolving resistance trends.
Purpose:
- To determine the prevalence of UTI-causing microorganisms in Spanish outpatients.
- To assess the susceptibility of these pathogens to cefixime and six other antimicrobials.
- To inform empirical treatment guidelines for UTIs in Spain.
Summary:
- A prospective study of 1,000 outpatients with positive urine cultures was conducted in Spain in 1998.
- Escherichia coli was the most frequent Gram-negative isolate (82.67%).
- A decrease in susceptibility to commonly used antimicrobials was observed, reinforcing the need for updated treatment strategies.
Impact:
- Findings confirm the high prevalence of E. coli in UTIs.
- The study highlights declining susceptibility to frequently prescribed antibiotics.
- Cefixime demonstrates significant in vitro activity, suggesting its utility in treating uncomplicated UTIs.
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