Azar Dokht Khosravi1, Soheila Khaghani2, Ahmad Farajzadeh Sheikh3, Ali Ahmadzadeh4, Ahmad Shamsizadeh4. 1. Professor, Department of Microbiology, School of Medicine & Health Research Institute, Infectious and Tropical Diseases Research Center , Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran . 2. Research Assistant, Health Research Institute, Infectious and Tropical Diseases Research Center, Ahvaz Jundishapur University of Medical Sciences , Ahvaz, Iran . 3. Associate Professor, Department of Microbiology, Ahvaz Jundishapur University of Medical Sciences , Ahvaz, Iran . 4. Professor, Department of Pediatric, School of Medicine, Ahvaz Jundishapour University of Medical Sciences , Ahvaz, Iran .
Abstract
INTRODUCTION: Escherichia coli O157: H7 are recognized as important aetiological agents of diarrhea in children, particularly in developed countries. AIM: The aim of the study was to determine the rates of detection of E. coli O157: H7strains among children in Ahvaz, Iran. MATERIALS AND METHODS: From June 2010 to December 2010, 137 diarrheal stool samples of children were collected. E.coli was identified by standard microbiological techniques. O157 or O157:H7 subtypes discerned by serological tests. RESULTS: Of the 137 E. coli isolates, enteropathogens were found in 53 (38.7%) of the patients as follow: Shigella spp. (75.5%), EPEC (enteropathogenic E. coli) (16.9%), Campylobacter spp. (3.8%) and Salmonella spp. (3.8%). None of the isolated E. coli was O157:H7 serotype. CONCLUSION: This shows that non-O157:H7 E. coli are the major cause of paediatric infections in this region of Iran.
INTRODUCTION:Escherichia coli O157: H7 are recognized as important aetiological agents of diarrhea in children, particularly in developed countries. AIM: The aim of the study was to determine the rates of detection of E. coli O157: H7strains among children in Ahvaz, Iran. MATERIALS AND METHODS: From June 2010 to December 2010, 137 diarrheal stool samples of children were collected. E.coli was identified by standard microbiological techniques. O157 or O157:H7 subtypes discerned by serological tests. RESULTS: Of the 137 E. coli isolates, enteropathogens were found in 53 (38.7%) of the patients as follow: Shigella spp. (75.5%), EPEC (enteropathogenic E. coli) (16.9%), Campylobacter spp. (3.8%) and Salmonella spp. (3.8%). None of the isolated E. coli was O157:H7 serotype. CONCLUSION: This shows that non-O157:H7E. coli are the major cause of paediatric infections in this region of Iran.
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