alexa Prevalence and Distribution of Superantigen Toxin Genes in Clinical Community Isolates of Staphylococcus Aureus
ISSN: 2155-9597

Journal of Bacteriology & Parasitology
Open Access

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Research Article

Prevalence and Distribution of Superantigen Toxin Genes in Clinical Community Isolates of Staphylococcus Aureus

Mohamed Elazhari1,2*, Driss Elhabchi3, Khalid Zerouali4, Noureddine Dersi1, Abdeloihed Elmalki1, Mohammed Hassar1, Rachid Saile2 and Mohammed Timinouni1

1Laboratoire de Bactériologie Médicale et Moléculaire, Centre de Biologie Médicale, Institut Pasteur du Maroc, 1 place Louis Pasteur, Casablanca-20360, Maroc

2Laboratoire de Recherche sur les Lipoprotéines et l'Athérosclérose, Unité Associée au, CNRST -URAC 34- Université Hassan II, Faculté des Sciences Ben M'sik, Casablanca

3Laboratoire de Bactériologie, Département de sécurité alimentaire et d'environnement, Institut Pasteur du Maroc, 1 place Louis Pasteur, Casablanca-20360, Maroc

4Laboratoire de Bactériologie, Faculté de Médecine et de Pharmacie, Université Hassan II, Rue Tarik Bnou Zyad, Casablanca-20360, Maroc

*Corresponding Author:
Dr. Mohamed Elazhari
Laboratoire de Bactériologie Médicale
Centre de Biologie Médicale
Institut Pasteur du Maroc, 1 place Louis Pasteur
Casablanca-20360, Maroc
Tel: +212 665 646 376
Fax: +212 522 434 477
E-mail: [email protected], [email protected]

Received date: December 25, 2010; Accepted date: February 23, 2011; Published date: February 25, 2011

Citation: Elazhari M, Elhabchi D, Zerouali K, Dersi N, Elmalki A, et al. (2011) Prevalence and Distribution of Superantigen Toxin Genes in Clinical Community Isolates of Staphylococcus Aureus. J Bacteriol Parasitol 2:107. doi: 10.4172/2155-9597.1000107

Copyright: © 2011 Elazhari M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

 

Abstract

To investigate the distribution of twelve staphylococcal enterotoxin genes (se) and the toxic shock syndrome toxin-1 gene (tst) in Staphylococcus aureus, 140 community isolates from various origins were investigated. Isolates were collected, from 15 clinical laboratories located at Casablanca, between 2007 and 2008, they were identified by conventional methods, and methicillin resistance was confirmed by amplification of mecA gene by PCR. All isolates were searched using a multiplex PCR for the accessory gene regulator (agr) group, and for thirteen superantigen (SAg) toxin genes: sea, seb, sec, sed, seh, selk, sell, selm, selo, selp, selq, ser and tst. Among all isolates, only two were methicillin-resistant and one hundred seven were shown to be positive for at least one of the tested SAg toxin genes. They were grouped in 43 genotypes. Our work showed that agr group III and agr group I S. aureus isolates, were highly prevalent for the presence of seh, selq, selk and/or tst genes, on one hand, and sec and/or sell genes, on the other hand (P<0.05), respectively. In addition, we found a relationship between pus/ wound S. aureus isolates and the presence of selk + selq genes (P<0.05). Our results suggest that agr group III isolates carried more of SAg toxin genes than agr groups I and II S. aureus strains.

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