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J Clin Diagn Res. 2016 Jan;10(1):DC13-5. doi: 10.7860/JCDR/2016/16689.7134. Epub 2016 Jan 01.

Prevalence of Escherichia coli O157:H7 in Children with Bloody Diarrhea Referring to Abuzar Teaching Hospital, Ahvaz, Iran.

Journal of clinical and diagnostic research : JCDR

Azar Dokht Khosravi, Soheila Khaghani, Ahmad Farajzadeh Sheikh, Ali Ahmadzadeh, Ahmad Shamsizadeh

Affiliations

  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 .

PMID: 26894066 PMCID: PMC4740593 DOI: 10.7860/JCDR/2016/16689.7134

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.

Keywords: Diarrheal stools; Gastroenteritis; Paediatric infections; Stool samples

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