Document Type : Original Research Article
Department of Microbiology, Varamin-Pishva Branch, Islamic Azad Univercity, Varamin-Pishva, Iran
Department of Neuroscience and Addiction Studies, School of Advanced Technologies in Medicine, Tehran University of Medical Sciences, Tehran, Iran
Department of Microbiology, Islamic Azad University Science and Research Branch , Islamic Azad Univercity, Tehran, Iran
Department of Microbiology, Razi Vaccine and serum Research Institute, Agricultural Research, Education and Extension Organization (AREEO), Karaj, Iran
Medical Biotechnology Department, Biotechnology Research Center, Pasteur Institute of Iran, Tehran, Iran
Department of Microbiology, Biological Science College, Varamin-Pishva Branch, Islamic Azad Univercity, Varamin-Pishva, Iran
The aim of this study was to investigate the antibiotic resistance and identification of strains producing broad-spectrum beta-lactamases salmonella strains. The 70 different strains of salmonella were studied that gentamicin, ciprofloxacin, ofloxacin, imipenem, and enrofloxacin were susceptible. The highest resistance to cephalexin (96 %), cefazolin (96 %), cephalothin (65 %), and 69 isolates (98 %), were resistant to more than one antibiotic. The results of the Polymerase Chain Reaction (PCR) were evaluated on ESBL producing isolates using specific primers; in order to investigate the presence of CTX-Mbla, SHVbla, TEMbla and OXAbla, so the presence of germ cell resistance genes in total indicated that 32 isolates (56 %), at least one of the above genes.