The Study of Antimicrobial Resistance among Salmonella enterica Strains Isolated from Children with Gastroenteritisin in Tehran, Iran

Background:     Salmonella enterica is one of the predominant causes of the food-borne salmonellosis in humans. The aim of this study was to determine antimicrobial resistance patterns of Salmonella enterica isolated from stool samples of children with gastroenteritisin in Tehran, Iran. Methods: ...

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Main Authors: Fatemeh Fardsanei, Mohammad Mehdi Soltan Dallal, Mojtaba Memariani, Sarah Sharifi-Yazdi, Fariba Nabatchian, Mohammad Kazem Sharifi-Yazdi
Format: Article
Language:English
Published: Tehran University of Medical Sciences 2020-10-01
Series:Journal of Medical Bacteriology
Subjects:
Online Access:https://jmb.tums.ac.ir/index.php/jmb/article/view/450
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author Fatemeh Fardsanei
Mohammad Mehdi Soltan Dallal
Mojtaba Memariani
Sarah Sharifi-Yazdi
Fariba Nabatchian
Mohammad Kazem Sharifi-Yazdi
author_facet Fatemeh Fardsanei
Mohammad Mehdi Soltan Dallal
Mojtaba Memariani
Sarah Sharifi-Yazdi
Fariba Nabatchian
Mohammad Kazem Sharifi-Yazdi
author_sort Fatemeh Fardsanei
collection DOAJ
description Background:     Salmonella enterica is one of the predominant causes of the food-borne salmonellosis in humans. The aim of this study was to determine antimicrobial resistance patterns of Salmonella enterica isolated from stool samples of children with gastroenteritisin in Tehran, Iran. Methods:     Stool samples of patients with diarrhea in a pediatric hospital in were collected from June 2017 to May 2018. Microbiological methods were used for identification of Salmonella. The identity of Salmonella enterica serotype enteritidis (S. enteritidis) was also confirmed by a multiplex-PCR. Antibiotic susceptibility testing was performed according to the standard procedure of the Clinical and Laboratory Standards Institute (CLSI). Results:     Of 800 samples, 24 were identified as Salmonella. The most prevalent serotype was S. enteritidis (n=10, 41.7%), followed by S. paratyphi C, (n=6, 25%), S. paratyphi B (n=4, 16.7%), S. arizonae 2 (n=2, 8.3%), and S. paratyphi A (n=2, 8.3%). The highest rates of antibiotic resistance were obtained for nitrofurantoin (100%), followed by nalidixic acid (45.8%), and tetracycline (16.7%). Of 24 S. enteritidis, 9 distinct antibiotypes (Abs) were observed. In this respect, 3 isolates (12.5%) were resistant to at least three or more antibiotics. The most prevalent antibiotype was AB1 (n=8, 33%), which was indicative of resistance to nitrofurantoin. Conclusion:     Considering the constant changes in antibiotic resistance patterns among food-borne pathogens over time, continuous monitoring of multidrug-resistant Salmonella isolates would definitely improve infection control strategies.
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spelling doaj.art-fcf9f64aa253451ca598896ea715093f2022-12-21T20:06:09ZengTehran University of Medical SciencesJournal of Medical Bacteriology2251-86492322-25812020-10-0191-2450The Study of Antimicrobial Resistance among Salmonella enterica Strains Isolated from Children with Gastroenteritisin in Tehran, IranFatemeh Fardsanei0Mohammad Mehdi Soltan Dallal1Mojtaba Memariani2Sarah Sharifi-Yazdi3Fariba Nabatchian4Mohammad Kazem Sharifi-Yazdi5Division of Microbiology, Department of Pathobiology, School of Public Health, Tehran University of Medical Science, Tehran, Iran. AND Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran. Iran.Division of Microbiology, Department of Pathobiology, School of Public Health, Tehran University of Medical Science, Tehran, Iran. AND Food Microbiology Research Center, Tehran University of Medical Sciences, Tehran. Iran.Skin Research Center, Shahid Beheshti University of Medical Sciences, Tehran, Iran.Medical Student, Faculty of Medicine, Tehran University of Medical Sciences, Tehran. Iran.Department of Medical Laboratory Sciences, School of Paramedicine, Tehran University of Medical Sciences. Tehran, Iran.Zoonosis Research Center, Tehran University of Medical Sciences, Tehran, Iran, Department of Medical Laboratory Sciences, School of Paramedicine, Tehran University of Medical Sciences. Tehran, Iran.Background:     Salmonella enterica is one of the predominant causes of the food-borne salmonellosis in humans. The aim of this study was to determine antimicrobial resistance patterns of Salmonella enterica isolated from stool samples of children with gastroenteritisin in Tehran, Iran. Methods:     Stool samples of patients with diarrhea in a pediatric hospital in were collected from June 2017 to May 2018. Microbiological methods were used for identification of Salmonella. The identity of Salmonella enterica serotype enteritidis (S. enteritidis) was also confirmed by a multiplex-PCR. Antibiotic susceptibility testing was performed according to the standard procedure of the Clinical and Laboratory Standards Institute (CLSI). Results:     Of 800 samples, 24 were identified as Salmonella. The most prevalent serotype was S. enteritidis (n=10, 41.7%), followed by S. paratyphi C, (n=6, 25%), S. paratyphi B (n=4, 16.7%), S. arizonae 2 (n=2, 8.3%), and S. paratyphi A (n=2, 8.3%). The highest rates of antibiotic resistance were obtained for nitrofurantoin (100%), followed by nalidixic acid (45.8%), and tetracycline (16.7%). Of 24 S. enteritidis, 9 distinct antibiotypes (Abs) were observed. In this respect, 3 isolates (12.5%) were resistant to at least three or more antibiotics. The most prevalent antibiotype was AB1 (n=8, 33%), which was indicative of resistance to nitrofurantoin. Conclusion:     Considering the constant changes in antibiotic resistance patterns among food-borne pathogens over time, continuous monitoring of multidrug-resistant Salmonella isolates would definitely improve infection control strategies.https://jmb.tums.ac.ir/index.php/jmb/article/view/450Antibiotic resistanceAntibiotypesDiarrhea Salmonella enteritidisSalmonellosis.
spellingShingle Fatemeh Fardsanei
Mohammad Mehdi Soltan Dallal
Mojtaba Memariani
Sarah Sharifi-Yazdi
Fariba Nabatchian
Mohammad Kazem Sharifi-Yazdi
The Study of Antimicrobial Resistance among Salmonella enterica Strains Isolated from Children with Gastroenteritisin in Tehran, Iran
Journal of Medical Bacteriology
Antibiotic resistance
Antibiotypes
Diarrhea Salmonella enteritidis
Salmonellosis.
title The Study of Antimicrobial Resistance among Salmonella enterica Strains Isolated from Children with Gastroenteritisin in Tehran, Iran
title_full The Study of Antimicrobial Resistance among Salmonella enterica Strains Isolated from Children with Gastroenteritisin in Tehran, Iran
title_fullStr The Study of Antimicrobial Resistance among Salmonella enterica Strains Isolated from Children with Gastroenteritisin in Tehran, Iran
title_full_unstemmed The Study of Antimicrobial Resistance among Salmonella enterica Strains Isolated from Children with Gastroenteritisin in Tehran, Iran
title_short The Study of Antimicrobial Resistance among Salmonella enterica Strains Isolated from Children with Gastroenteritisin in Tehran, Iran
title_sort study of antimicrobial resistance among salmonella enterica strains isolated from children with gastroenteritisin in tehran iran
topic Antibiotic resistance
Antibiotypes
Diarrhea Salmonella enteritidis
Salmonellosis.
url https://jmb.tums.ac.ir/index.php/jmb/article/view/450
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