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Background:
Giardia lamblia is an enteric protozoan parasite, which infects human and a wide range of vertebrate hosts.
Jundishapur Journal of Microbiology
Ahvaz Jundishapur University of Medical Sciences
Genotype Analysis of Giardia lamblia Isolated From Children in Ahvaz, Southwest of Iran
Author(s):
Elham Sadat Roointan1, 
Abdollah Rafiei
2,*, Ali Reza Samarbaf-Zadeh3, Ali Akbar Shayesteh4, Ahmad Shamsizadeh5, Mahdi Pourmahdi Borujeni61Parasitology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
2Parasitology Department, Faculty of Medicine, and Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
3Virology Department, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
4Department of Internal Medicine, Imam Khomeini Hospital, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
5Pediatreic Department and Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, IR Iran
6Department of Food Hygiene, Faculty of Veterinary Medicine, Shahid Chamran University of Ahvaz, Ahvaz, IR Iran
Published online:Apr 30, 2013
Article type:Research Article
Received:May 22, 2012
Accepted:Jun 30, 2012
How to Cite:Roointan E S, Rafiei A, Samarbaf-Zadeh A R, Shayesteh A A, Shamsizadeh A, et al. Genotype Analysis of Giardia lamblia Isolated From Children in Ahvaz, Southwest of Iran.Jundishapur J Microbiol.2013;6(3):279-83.https://doi.org/10.5812/jjm.6443 .
Abstract
Objectives:
The aim of this study was to investigate genotypes of G. lamblia from children fecal samples in Ahvaz, South West of Iran by PCR-RFLP method.
Materials and Methods:
Fecal samples were collected from 58 children who were positive for G. lamblia. DNA extractions were performed by QIAamp Stool Mini Kit. DNA were evaluated by semi nested PCR-RFLP assay, targeting the glutamate dehydrogenase (gdh) gene, which was used to distinguish within and between genotypes A and B.
Results:
Fifty samples (86%) were confirmed by semi-nested PCR. Genotype analysis among 50 isolates indicated 5 (10%) and 8 (16%) assemblages AII and B, respectively. Mixed Infections with both assemblages AII and B were also detected in 37 (74%) cases.
Conclusions:
Current study indicated the molecular characterization of G. lamblia in southwest of Iran. Postulated sources of contamination by accidental discharge of sewage effluent and faecal contamination from animals may contribute to this high rate of mixed infection in the current study. Further studies are needed to underestand the source and route of infection better.
Copyright
© 2013, 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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