Antimicrobial resistance profiles and genes in uropathogenic Enterobacteriaceae in reproductive-age women in St. Petersburg, Russia: implication for treatment of pyelonephritis in pregnancy.

Background: Urinary tract infections (UTIs) are common in women, and during pregnancy can cause significant morbidity. Growing and greatly varying antimicrobial resistance (AMR) of Enterobacteriaceae, responsible for most UTIs, necessitates regular local AMR surveillance. In obstetric population, where beta-lactams are the mainstay for treatment of severe UTIs, particular focus should be placed on beta-lactam resistance.