Submitted: 20 Jan 2016
Revised: 07 Feb 2016
Accepted: 29 Feb 2016
First published online: 26 Mar 2016
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Int J Enteric Pathog. 2016;4(3): e36326.
doi: 10.15171/ijep.2016.01
  Abstract View: 3347
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Original Article

Prevalence of Escherichia coli Pathotypes Among Children With Diarrhea in Babol, Northern Iran

Fatemah Moshtagian 1, Majid Alipour 2 * , Yousef Yahyapour 3

1 Department of Microbiology, Pharmaceutical Science Branch, Islamic Azad University, Tehran, Iran
2 Department of Microbiology, Babol Branch, Islamic Azad University, Babol, Iran
3 Infectious Diseases & Tropical Medicine Research Center and Department of Microbiology, Faculty of Medicine, Babol University of Medical Sciences, Babol, Iran
*Corresponding Author: Majid Alipour, Department of Microbiology, Babol Branch, Islamic Azad University, Babol, Iran Email:


Background: Diarrheagenic Escherichia coli (DEC) are major causes of diarrhea in the world particularly among infants and young children.

Objectives: The aim of this study was to determine the prevalence of DEC strains in stool samples from children under 5 years old.

Patients and Methods: Stool specimens were collected from 200 children under 5 years visiting hospital due to gastroenteritis. E. coli pathotypes were detected by using conventional culture techniques and polymerase chain reaction (PCR).

Results: Sixty-eight (34%) out of 200 specimens were positive for DEC. Different pathotypes would show the following profiles: 43 (21.5%) for enteropathogenic E. coli (EPEC); 18 (9%) for enterotoxigenic E. coli (ETEC) including 10 (55.5%) st positive, 6 (33.3%) lt positive and 2 (11.1%) st and lt both positive; 6 (3%) for enteroaggregative E. coli (EAEC) and 1 (0.5%) for enteroinvasive E. coli (EIEC). Enterohemorrhagic E. coli (EHEC) was not isolated from any of the E. coli strains tested.

Conclusions: This study shows that DEC is a common cause of childhood diarrhea in Babol. EPEC and ETEC were the most frequent pathotypes in the population under study.

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