High Rates of ESBL-producing and Gentamycin-resistant Gram-negative Bacteria During the First Week of Life: A Multicenter Cross-sectional Study Among Infants Younger Than 2 Months With Urinary Tract Infection.

Introduction: Reducing the risk of renal scarring in infants with urinary tract infection (UTI) necessitates timely and effective administration of antimicrobial treatment. The Israeli Medical Association recommends the empirical use of gentamicin and ampicillin for febrile infants younger than 2 months with suspected UTI. We aimed to assess the prevalence of Extended Spectrum Beta-Lactamase (ESBL)-producing and gentamicin-resistant Gram-negative UTI among infants younger than 2 months.