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Integron frequency of Escherichia coli strains from patients with urinary tract infection in Southwest of Iran

Journal of Acute Disease 2019年第3期8卷 113-117页

作者： Miaad K.Alkhudhairy Morteza Saki Sakineh Seyed-Mohammadi Nabi Jomehzadeh Saeed Khoshnood mina.moradzadeh Sajjad Yazdansetad Community Health Department College of Health and Medical TechniquesAl-Furat Al-Awsat Technical UniversityKufaIraq Department of Microbiology Faculty of MedicineAhvaz Jundishapur University of Medical SciencesAhvazIran Student Research Committee Ahvaz Jundishapur University of Medical SciencesAhvazIran Abadan School of Medical Sciences AbadanIran Student Research Committee School of MedicineBam University of Medical SciencesBamIran Department of Microbiology School of MedicineGolestan University of Medical SciencesGorganIran

Objective: To investigate the frequency of integrase genes intI1, intI2 and intI3 of Escherichia coli strains, and their association with resistance to routinely used antibiotics. Methods: A total of 120 Escherichia coli strains were collected from patients with urinary tract infection in Ahvaz, Southwest of Iran. Antibiotic susceptibility testing was performed. The presence of intI1, intI2, and intI3 genes was determined by polymerase chain reaction. Results: Antibiotic susceptibility testing disclosed the highest resistance rate to ampicillin (91.7%) followed by trimethoprim/sulfamethoxazole (65.8%), and ceftazidime (56.7%). The imipenem susceptibility rate was 91.7%. IntI1 and intI2 were identified in 74 (61.6%) and 8 (6.6%) of Escherichia coli strains, respectively, but intI3 was not found in any isolates. The presence of integrons was significantly associated with resistance to ampicillin, trimethoprim/sulfamethoxazole, ceftazidime, and ciprofloxacin antibiotics (Pmination of resistant strains.

关键词： Escherichia coli Urinary tract infection Integrons IntI1

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