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7950

Molecular Characterization of Escherichia coli O157:H7 and non-O157 Shiga Toxin Producing E. coli from Retail Meat and Humans

Article

Last updated: 03 Jan 2025

Subjects

-

Tags

Animal Health, Nutrition and Food Control (Veterinary Public Health, Animal Wealth Development, Animal Nutrition, Zoonoses, Food Control)

Abstract

A total of 550 meat samples (300 minced beef and 250 chicken meat) marketed in Zagazig City, Sharkia Governorate, Egypt, as well as 150 human stool samples were examined for Shiga toxin producing E. coli. Results revealed that the isolation rates of E. coli O157:H7 versus non- O157 were 1.7% versus 2.3% in minced beef, 0.8% versus 2% in chicken meat and 0.7% versus 2.7% in human stools. Other identified serotypes were including O111:H8 (25%), O26:H11 (20.8%), O55:H7 (16.7%) and O113:H21 (4.2%). Virulence associated genes were identified in E. coli serotypes, stx1 and stx2 were characterized in 16.7% and 62.5% of the isolates, while, eaeA and hlyA genes were identified in 50% and 70.8% of the examined serotypes, respectively. Genotyping of E. coli O157:H7 serotype from different sources using Enterobacterial repetitive intergenic consensus polymerase chain reaction (ERIC-PCR) fingerprinting revealed heterogenicity of the isolates, however, human and minced beef isolates were grouped in the same cluster indicating potential transmission of infection from contaminated beef to human consumers. In conclusion, ERIC-PCR is a highly discriminatory, reliable and cost-effective tool for tracing sources of infection with bacteria. Public health education and application of strict hygienic measures during slaughtering, transportation and preparation of meat are essential to minimize the risk of contamination and transmission of infection to consumers.

DOI

10.21608/zvjz.2017.7950

Keywords

STEC, Poultry meat, beef, Shiga toxin, eaeA gene, hly gene

Authors

First Name

Heba

Last Name

Ahmed

MiddleName

-

Affiliation

Zoonoses Department, Faculty of Veterinary Medicine, Zagazig University

Email

heba_ahmed@zu.edu.eg

City

Cairo

Orcid

-

First Name

Ewan

Last Name

MacLeod

MiddleName

T.

Affiliation

-

Email

ewan.macleod@ed.ac.uk

City

-

Orcid

-

First Name

Rasha

Last Name

El Bayomi

MiddleName

M.

Affiliation

-

Email

-

City

-

Orcid

-

First Name

Rasha

Last Name

Mohsen

MiddleName

A.

Affiliation

-

Email

-

City

-

Orcid

-

First Name

Arwa

Last Name

Nassar

MiddleName

H.

Affiliation

-

Email

-

City

-

Orcid

-

Volume

45

Article Issue

3

Related Issue

1521

Issue Date

2017-09-01

Receive Date

2018-06-07

Publish Date

2017-09-01

Page Start

250

Page End

261

Print ISSN

1110-1458

Online ISSN

2357-075X

Link

https://zvjz.journals.ekb.eg/article_7950.html

Detail API

https://zvjz.journals.ekb.eg/service?article_code=7950

Order

6

Type

Original Article

Type Code

601

Publication Type

Journal

Publication Title

Zagazig Veterinary Journal

Publication Link

https://zvjz.journals.ekb.eg/

MainTitle

Molecular Characterization of Escherichia coli O157:H7 and non-O157 Shiga Toxin Producing E. coli from Retail Meat and Humans

Details

Type

Article

Created At

22 Jan 2023