Occurrence of Class 2 Integrons Among Multi-Drug Resistant Shigella Sonnei Isolated from Tehran, Iran in 2005

Reza Ranjbar; Shohreh Farshad; Mohammad Rahbar; Zahra Safiri; Caterina Mammina; Mohammad Arjomanzadegan

Archives of Clinical Infectious Diseases

Infectious Diseases and Tropical Medicine Research Center, SBUMS

e-ISSN 2345-2641

Cover image of the article: Occurrence of Class 2 Integrons Among Multi-Drug Resistant Shigella Sonnei Isolated from Tehran, Iran in 2005

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Abstract
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Occurrence of Class 2 Integrons Among Multi-Drug Resistant Shigella Sonnei Isolated from Tehran, Iran in 2005

Authors

Reza Ranjbar

^1,*, Shohreh Farshad², Mohammad Rahbar³, Zahra Safiri¹, Caterina Mammina⁴, Mohammad Arjomanzadegan⁵

1Molecular Biology Research Center, Baqiyatallah University of Medical Sciences, Tehran, IR Iran

2Professor Alborzi Clinical Microbiology Research Center, Shiraz University of Medical Sciences, Shiraz, IR Iran

3Department of Microbiology, Iranian Reference Health Laboratories, Tehran, IR Iran

4Dipartimento di Scienze per la Promozione della Salute G. DAlessandro, Universit di Palermo, Via del Vespro, Palermo, Italy

5Research Center of Infectious Disease, Arak University of Medical Sciences, Arak, IR Iran

*Corresponding Author: Molecular Biology Research Centre, Baqiyatallah University of Medical Sciences, Molla Sadra St. Tehran, IR Iran., ranjbar@bmsu.ac.ir. Email: ranjbar@bmsu.ac.ir

Archives of Clinical Infectious Diseases:Vol. 5, issue 3; 156-160

Published online:Jul 31, 2010

Article type:Brief Report

How to Cite:Ranjbar R, Farshad S, Rahbar M, Safiri Z, Mammina C, et al. Occurrence of Class 2 Integrons Among Multi-Drug Resistant Shigella Sonnei Isolated from Tehran, Iran in 2005. Arch Clin Infect Dis. 2010;5(3):. doi:

Abstract

Background:

Shigellosis is one of the major causes of morbidity in children with diarrhea in Iran. Integrons play an important role in the evolution and dissemination of multidrug resistance in gram-negative bacteria. The occurrence of integrons among Shigella spp. is frequently reported throughout the world. The aim of this study was to assess the occurrence of class 2 integrons among the multi drug resistant S. sonnei isolated from Iranian children in 2005.

Materials and methods:

The study was conducted in two major pediatric hospitals in Tehran, Iran. Fecal specimens and rectal swab collected from patients were cultured and identified as Shigella by the conventional methods. Antimicrobial susceptibility test was performed according to the standard CLSI guideline. Multi-drug resistant isolates of S. sonnei were further examined for the presence of class 2 integron by PCR using specific primers. Amplicons were

confirmed by restriction endonuclease analysis.

Results:

A total of 83 multi-drug resistant S. sonnei strains were isolated. Of these, 45 (54%) exhibited a class 2 integron of 2.1 kbp, and 34 (41%) a class 2 integron of 1.3 kbp. Class 2 integrons were not detected in four isolates.

Conclusion:

The results showed an increased occurrence of class 2 integron carrying S. sonnei isolated from children in Tehran in 2005.

Shigella Sonnei, Class 2 Integron, Multi-Drug Resistant

Highlights

KeywordsShigella Sonnei Class 2 Integron Multi-Drug Resistant

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© 2010, Author(s). This open-access article is available under the Creative Commons Attribution 4.0 (CC BY 4.0) International License (https://creativecommons.org/licenses/by/4.0/), which allows for unrestricted use, distribution, and reproduction in any medium, provided that the original work is properly cited.

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