شيوع انواع سروتايپ هاي H اشرشياكلي در ايجاد عفونت ادراري در كودكان شهر جهرم

The prevalence of H serogroups of Escherichia coli strains giving rise to acute urinary tract infection in children in Jahrom.

Introduction: Nowadays E. coli as the most common Cause of acute urinary tract infection are generally named based on serotypes of O and H . The aim of this Cross-Sectional study was to determine the prevalence of H serogroups of E. coli strains that cause community acquired UTI in children. Materials and Methods: In this study 96 children with urinary tract infections (UTI) referred to two teaching hospitals, in Jahrom, Iran during the period of August 2005- August 2006 were enrolled. Antibiogram was done by disk diffusion method and serotyping by tebe agglutination methods. Results: A Total of 96 E. coli strains were isolated from the urine samples of children with UTI aged from one month to 14 years. Cystitis was diagnosed in 49.2% and pyelonephritis in 50.8% of these patients. The most resistance was related to Ampicilin (80.2%) and the least to imipenem (1.1%). The most common type of H antigen was H4 (6.1%). Conclusion: This is the first report of E-coli serotying in children with UTI from the south of Iran and its relationship with antibiotic resistance and clinical presentation. Further research in athes p ts with move st e thypes is re Commended.