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Urinary tract infection (UTI) is a common pathology in children. The prevalence of uropathogens varies according to geographic regions and even between different care centers. Knowledge of this prevalence and antimicrobial susceptibility helps to choose the initial empirical antibiotic therapy, thus allowing the control of the acute condition and avoiding bacterial resistance. Objective: to determine the sensitivity of uropathogens to antimicrobials obtained from urine cultures of children younger than 24 months with diagnosis of UTI from the community. Material and methods: observational, descriptive, retrospective, cross-sectional study. We analyzed the clinical records and results of urine cultures of infants under 24 months admitted to the Department of Pediatrics of the National Hospital in the period between January 2012 and December 2014, diagnosed as UI. Results: the most frequent uropathogen was Escherichia coli (67.6%) followed by Klebsiella pneumoniae (18.3%), Enterobacter cloacae (8.4%), Pseudomonas aeruginosa (2.8%) and others in 2, 9%. The sensitivity of E. coli to ciprofloxacin, cephalosporins and aminoglycosides was high. 14.6% of Escherichia coli was a producers of extended spectrum betalactamase (ESBL). 100% of Klebsiella pneumoniae strains was a sensitive to amikacin, ciprofloxacin and acidonaldehyde. Conclusions: the more frequent germ found was E. coli, followed by Klebsiella pneumoniae. The recommended treatment of choice is the combination of first-generation cephalosporins associated with aminoglycosides, as this scheme will cover more than 95% of the uropathogens that cause urinary tract infection in the community. Germs producing atypical urinary infection should be investigated.

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Prevalencia de uropatógenos y sensibilidad antimicrobiana en lactantes menores de 2 años provenientes de la comunidad con diagnóstico de infección de vías urinarias