“…The bacteriological evaluation of these urinary iso lates demonstrated a general prevalence of gram-nega tive rods (68.9%), mainly Escherichia coli (26.6%), KES group (24.4%) and Pseudomonas aeruginosa (11.2%). Gram-positive strains (primarily group A streptococci and enterococci) were in the minority (31.1 %) [3,4,9] in contrast with the microbial distribu tion observed by other authors [8,12,13,16] (ta ble III). The percentage of urinary infections was quite similar to that observed in the literature after different chemo prophylactic treatments [3,6,7,9,[11][12][13].…”