article · DOAJ (DOAJ: Directory of Open Access Journals)
ABSTRACT Introduction. Among nosocomial and community diseases include urinary tract infections (UTIs). The microbiology of urinary tract infections can serve as a guide for the management of urinary tract infections. Methodology. The main goal of the present study was to examine all strains recovered from UITs between January 2023 and June 2025. Results. The results revealed that 14.4% of the data indicate that 528 of the 3665 urine samples satisfied the requirements for a UTI of bacterial origin and the ratio F/M was 1.34. 499 Gram-negative bacilli (94.50%) and 29 Gram-positive cocci (5.5%) were among the 528 uropathogenic bacteria that were isolated. Escherichia coli accounted for 70.8% of the 10 bacterial taxa detected, followed by Klebsiella pneumoniae coming in second rank (17.42%). Concerning the resistance to aminopenicillin, amoxicillin-clavulanic acid, ceftazidime, cefotaxime, norfloxacin, ciprofloxacin, and cotrimoxazole was common among uropathogenic organisms. The synergy test revealed a very high sensitivity to imipenem combined with fosfomycin. When the synergy test for the identification of EBLSE was performed on enterobacteria resistant to one of the third-generation cephalosporins, very high sensitivity was noted for imipenem and fosfomycin. This investigation revealed the existence of 31 strains of BLSE with a frequency of 8.05%. When β-lactamase resistance genes identified using PCR, TEM, CTX-M, and SHV were detected, with TEM (90%) and CTM-X (80%) being the most prevalent enzymes. Sequencing molecular analysis revealed the existence of variations of CTX-M15, TEM1, SHV1, and SHV11. Multiplex PCR molecular characterization of quinolone resistance genes showed that the aac(6')-Ib-cr variation is present at 80% frequency, whereas qnr is present at 30%. Our analysis demonstrated that enterobacteria are widespread. Conclusion. The present study demonstrated the prevalence of enterobacteria UTIs, primarily E. coli, with respect to antibiotic resistance profiles that are frequently used for UTI treatment. RÉSUMÉ Introduction. Parmi les maladies nosocomiales et communautaires figurent les infections des voies urinaires (IVU). La microbiologie des infections urinaires peut servir de guide pour leur prise en charge. Méthodologie. L'objectif principal de la présente étude était d'examiner toutes les souches isolées d'IVU entre Janvier 2023 et Juin 2025. Résultats. Sur 3665 échantillons d'urine, 528 (soit 14,4 % des données) ont confirmé une IVU bactérienne, avec un ratio F/H de 1,34. La majorité des bactéries isolées étaient des bacilles à Gram négatif (94,50 %). La bactérie la plus fréquente était Escherichia coli (70,8 %), suivie de Klebsiella pneumoniae (17,42 %). La résistance était commune aux antibiotiques de première ligne (aminopénicilline, amoxicilline-acide clavulanique, céphalosporines de 3e génération, quinolones et cotrimoxazole). Un point notable est la très forte sensibilité aux associations imipénem/fosfomycine. L'étude a identifié 31 souches productrices de BLSE (8,05 % de fréquence). L'analyse PCR des gènes de résistance a montré la prévalence de TEM (90 %) et de CTX-M (80 %), avec des variations clés comme CTX-M15 et TEM1 confirmées par séquençage. De plus, la résistance aux quinolones est portée par la variation aac(6′)-Ib-cr (80 %). Conclusion. La présente étude a démontré la prévalence des IVU à entérobactéries, principalement E. coli, avec des profils de résistance aux antibiotiques fréquemment utilisés pour le traitement des IVU.
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DOI: 10.5281/hra.v3i11.7122
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