PHYLOGENETIC OF SHIGA TOXIN-PRODUCINGESCHERICHIA COLI AND A TYPICAL ENTEROPATHOGENIC ESCHERICHIA COLI STRAINS ISOLATED FROM HUMAN AND CATTLE IN KERMAN, IRAN

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ALIZADE HESAM; GHANBARPOUR REZA; NEKOUBIN MOJDEH

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Journal: International Journal of Enteric Pathogens Year:2014 | Volume:2 | Issue:1 Page(s): 0-0

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Title

PHYLOGENETIC OF SHIGA TOXIN-PRODUCINGESCHERICHIA COLI AND A TYPICAL ENTEROPATHOGENIC ESCHERICHIA COLI STRAINS ISOLATED FROM HUMAN AND CATTLE IN KERMAN, IRAN

Author(s)

ALIZADE HESAM | GHANBARPOUR REZA | NEKOUBIN MOJDEH | Issue Writer Certificate

Keywords

ESCHERICHIA COLI

DIARRHEA

SHIGA-TOXIGENIC ESCHERICHIA COLI

Abstract

Background: Shiga toxin-producing ESCHERICHIA COLI (STEC) have emerged as the important zoonotic food-borne pathogens and confirming the risk to public health. Enteropathogenic ESCHERICHIA COLI (EPEC) is a major cause of children diarrhoea in developing countries.E. coli strains can be assigned to four main phylogenetic groups, A, B1, B2 and D. Objectives: The aim of the current study was to analyze the distribution of phylogenetic groups and presence of STEC and atypical EPEC pathotypes inE. coli isolated from human DIARRHEA and fecal samples of healthy cattle in Kerman, Iran by PCR. Materials and Methods: A total of 188 E. coli isolates were isolated from human diarrheic (94 isolates) and fecal healthy cattle (94 isolates) samples. The isolates were identified by standard bacteriological tests. The confirmed isolates were examined to detect the phylogenetic groups and a selection of virulence genes includingstx1, stx2 and eae by PCR.Results: Phylotyping of isolates from diarrheic human showed that 38.29% belonged to A, 20.21% to B1, 14.89% to B2 and 26.59% to D phylo groups. The isolates of healthy cattle distributed in A (34.04%), B1 (47.88%), B2 (7.44 %) and D (10.64%) phylo-groups. Prevalence ofeae gene in human diarrheic isolates was 5.32% (5 isolates), whereas none of the human diarrheic isolates were positive for stx1 and stx2 genes. Among cattle isolates 7.44% (7 isolates) were positive for stx1 gene and 5.32% (5 isolates) possessed eae gene. Of the all isolates examined, none were positive for thestx2 gene. The eae gene were positive for isolates of human DIARRHEA distributed in A and B2 phylo-groups and isolates possessedstx1 and eae genes from healthy cattle fell into A (4 isolates), B1 (7) and B2 (one isolate). Conclusions: The isolates of human DIARRHEA samples and fecal healthy cattle were distributed into different phylogenetic groups, which mostly distributed in A and B1 phylo-groups. In addition, results of this study revealed the lower prevalence of SETC and aEPEC in isolates.

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APA: Copy

GHANBARPOUR, REZA,. (2014). PHYLOGENETIC OF SHIGA TOXIN-PRODUCINGESCHERICHIA COLI AND A TYPICAL ENTEROPATHOGENIC ESCHERICHIA COLI STRAINS ISOLATED FROM HUMAN AND CATTLE IN KERMAN, IRAN. INTERNATIONAL JOURNAL OF ENTERIC PATHOGEN, 2(1), 0-0. SID. https://sid.ir/paper/347475/en

Vancouver: Copy

GHANBARPOUR REZA. PHYLOGENETIC OF SHIGA TOXIN-PRODUCINGESCHERICHIA COLI AND A TYPICAL ENTEROPATHOGENIC ESCHERICHIA COLI STRAINS ISOLATED FROM HUMAN AND CATTLE IN KERMAN, IRAN. INTERNATIONAL JOURNAL OF ENTERIC PATHOGEN[Internet]. 2014;2(1):0-0. Available from: https://sid.ir/paper/347475/en

IEEE: Copy

REZA GHANBARPOUR, an, “PHYLOGENETIC OF SHIGA TOXIN-PRODUCINGESCHERICHIA COLI AND A TYPICAL ENTEROPATHOGENIC ESCHERICHIA COLI STRAINS ISOLATED FROM HUMAN AND CATTLE IN KERMAN, IRAN,” INTERNATIONAL JOURNAL OF ENTERIC PATHOGEN, vol. 2, no. 1, pp. 0–0, 2014, [Online]. Available: https://sid.ir/paper/347475/en

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