BACKGROUND: PRONARES (Programa Nacional de Vigilancia de Resistencia) is a national surveillance program for antimicrobial susceptibility, focused in different syndromes and among these, urinary tract infections. The work is done in a laboratory net that uses common protocols and whose data are centrally analyzed using the WHONET program. AIM: To analyze the pattern of antimicrobial susceptibility of agents causing urinary infections in children in the period 1997-1999. MATERIAL AND METHODS: In the study
