Identification of Carbapenem Resistance Genes in Escherichia coli Isolated from Blattella germanica by Dot Blot Assay in Hamadan Hospitals, Iran – ۲۰۱۸
Publish place: Iranian Journal of Medical Microbiology، Vol: 16، Issue: 4
Publish Year: 1401
نوع سند: مقاله ژورنالی
زبان: English
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شناسه ملی سند علمی:
JR_IJMM-16-4_010
تاریخ نمایه سازی: 16 خرداد 1401
Abstract:
Background and Objective: Today, one of the problems of health systems is the presence of cockroaches in hospitals as insects that move freely in and out of the hospitals and are infected with pathogenic bacteria. The aim of this study was to identify carbapenem resistance genes in Escherichia coli isolated from Blattella germanica by dot blot assay in Hamadan hospitals in the west of Iran.
Methods: A total of ۱۰۹ B. germanica from April to September ۲۰۱۸ were collected from ICUs of different hospitals in the Hamadan province, located in western Iran. The B. germanica were identified using reliable taxonomic keys by an expert in the Department of Entomology, insectarium Hamadan University of Medical Sciences, Iran. The antimicrobial susceptibility test was determined by disk diffusion. The dot blot assay was used to identify resistance genes in E. coli isolated from B. germanica.
Results: Out of ۱۰۹ B. germanica samples collected from ICUs of different hospitals in Hamadan, ۳۱ samples (۲۸.۴۴%) were positive for E. coli. The highest frequency of antibiotic resistance against ampicillin (۱۰۰%) and the lowest resistance to imipenem was observed in two isolates (۶.۴۵%). The frequency of genes among E. coli isolates in B. germanica was as follows: bla NDM (۴ isolates: ۳.۶۶%), bla OXA-۴۸ (one isolate: ۰.۹۲%), and other studied genes were not observed in any of the strains.
Conclusion: Cockroaches are an important factor in transmitting Enterobacterales and multidrug-resistant (MDR) strains. Therefore, effective preventive and control measures are needed to reduce vector-borne diseases.
Keywords:
Antimicrobial drug resistance , Blatella germanica , Dot blot assay , Escherichia coli , German cockroaches , مقاومت دارویی ضد میکروبی , Blatella germanica , سنجش دات بلات , اشریشیا کلی , سوسری آلمانی
Authors
Bahareh Seyfi
Department of Microbiology, Islamic Azad University, Hamadan, Iran
Hadi Hossainpour
Department of Microbiology, School of Medicine, Kermanshah University of Medical Sciences, Kermanshah, Iran
Sara Kooti
Behbahan Faculty of Medical Sciences, Behbahan, Iran
Farid Azizi Jalilian
Department of Virology, School of Medicine, Hamadan University of Medical Sciences, Hamadan, Iran
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