Volume 3, Number 4 (December 2016)                   J. Food Qual. Hazards Control 2016, 3(4): 146-151 | Back to browse issues page


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Soltan Dallal M, Khalilian M, Masoumi Asl H, Bakhtiari R, Davoodabadi A, Sharifi Yazdi M et al . Molecular Epidemiology and Antimicrobial Resistance of Salmonella spp. Isolated from Resident Patients in Mazandaran Province, Northern Iran. J. Food Qual. Hazards Control. 2016; 3 (4) :146-151
URL: http://jfqhc.ssu.ac.ir/article-1-290-en.html

Division of Food Microbiology, Department of Pathobiology, School of Public Health, Tehran University of Medical Sciences, Tehran, Iran , soltanda@sina.tums.ac.ir
Abstract:   (850 Views)

Background: Salmonella is one of the causes of food-borne illnesses worldwide resulting in a wide range of human diseases. The aim of this research was to study molecular epidemiology and antimicrobial resistance of Salmonella spp. isolated from resident patients in Mazandaran province, northern Iran.

Methods: Totally, 51 stool samples were collected from patients in 20 outbreaks recorded in Health Care Center of Mazandaran province, North of Iran, during October 2013 to September 2014. Cultivation and biochemical methods were used for differentiation of Salmonella. Identified Salmonella isolates were confirmed with 16S rRNA PCR method and sequencing. Antibiotic susceptibility test was carried out for each isolate.

Results: Four of 51 samples (7.84%) were contaminated with S. enteritidis. Molecular analysis and sequencing verified the isolates. The delineation level for each isolate discrimination in subsequent analysis was set at 94% for the primer. All of the isolates were resistant to tetracycline, nalidixic acid, and trimethoprim-sulfamethoxazole. No resistance was found to cefotaxime, chloramphenicol, ciprofloxacin, amoxicillin, and ceftazidime.

Conclusion: S. enteritidis was the most frequent serovar among salmonellosis outbreaks in the Mazandaran province, Iran. Also, isolated S. enteritidis showed various rates of susceptibility for different antibiotics.

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Type of Study: Original article | Subject: Special
Received: 16/08/28 | Accepted: 16/10/19 | Published: 16/12/14

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