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375925

Detection of Toxigenic Staphylococcus aureus and Escherichia coli Serotypes in Egyptian Cheeses by Multiplex PCR

Article

Last updated: 01 Jan 2025

Subjects

-

Tags

Veterinary Parasitology & Microbiology

Abstract

From white soft cheese, 150 samples were gathered from various regions in Kafrelsheikh, Egypt. Samples represented as Kariesh, Damietta and feta cheese (50 each). Microbiological analysis to detect Escherichia coli and staphylococcus aureus. The isolated S. aureus samples were tested biochemically then examined for the existence of genes of staphylococcal enterotoxins (SE) by multiplex PCR. Biochemical identification of E. coli  and serological detection of enteropathogenic types were done. Molecular diagnosis was performed to identify Shiga toxin (Stx1), Shiga toxin (Stx2) and intimin (eaeA) genes of enteropathogenic E. coli. Results declared that S. aureus was found in 62% of Kariesh, 38% of Damietta and 28% of feta cheese samples. Results of PCR displayed that 33.3 % of the isolated S. aureus had SEA gene, 3.33% had SEB gene, 3.33% had SEC gene, 6.67% had SED gene, 3.33% had SEC & SED genes and 3.33% possessed SEA, SEB and SEC genes. E. coli was found in 26% of Kariesh samples while Damietta and feta cheese samples revealed same occurrence (4%). Ten various serotypes of E. coli were characterized as following O26:H11(2.7%), O128:H2(2%), O111:H2 (1.3%), O124 serotype (1.3%), O91:H21(0.6%), O119:H6 (0.6%), O125:H21 (0.6%), O44:H18 (0.6%), O121:H7(0.6%) and O86 (0.6%). Regarding PCR results for E. coli, 23.5% of the detected serotypes carried stx1, stx2 and eaeA genes, 14.3% carried stx2 and eaeA genes, 13.1% carried stx1 plus stx2 genes, 23.5% had stx1 gene only and 17.6% possessed stx2 gene only. These results concluded that white soft cheese may represent a transmission vehicle for critical pathogens.

DOI

10.21608/ejvs.2024.281633.1985

Keywords

S. aureus, E. coli, Food poisoning, Egyptian cheese, Shiga toxin

Authors

First Name

Tarek

Last Name

Balabel

MiddleName

Mousa

Affiliation

Department of Hygiene and Preventive Medicine Department Faculty of Veterinary Medicine, Kafrelsheikh University

Email

osostoto2008@gmail.com

City

-

Orcid

-

First Name

Alaa

Last Name

hamdy

MiddleName

-

Affiliation

veterinary candidate

Email

alaakhedr78@yahoo.com

City

-

Orcid

-

First Name

Walid

Last Name

Elmonir

MiddleName

-

Affiliation

Hygiene and Preventive Medicine Department (Zoonoses), Faculty of Veterinary Medicine, Kafrelsheikh University, Kafrelsheikh, Egypt.

Email

walid_elmonir@yahoo.com

City

-

Orcid

-

First Name

Suzan

Last Name

Kotb

MiddleName

-

Affiliation

dept. of hygiene and preventive med. fac. of vet. mrd., kfs university

Email

suzan.morgan47@yahoo.com

City

-

Orcid

-

Related Issue

-2

Receive Date

2024-04-04

Publish Date

2024-08-25

Page Start

1

Page End

12

Print ISSN

1110-0222

Online ISSN

2357-089X

Link

https://ejvs.journals.ekb.eg/article_375925.html

Detail API

https://ejvs.journals.ekb.eg/service?article_code=375925

Order

375,925

Type

Original Article

Type Code

140

Publication Type

Journal

Publication Title

Egyptian Journal of Veterinary Sciences

Publication Link

https://ejvs.journals.ekb.eg/

MainTitle

Detection of Toxigenic Staphylococcus aureus and Escherichia coli Serotypes in Egyptian Cheeses by Multiplex PCR

Details

Type

Article

Created At

23 Dec 2024