169008

VIRULENCE GENES OF LISTERIA MONOCYTOGENES ISOLATED FROM SOME READY-TO-EAT CHICKEN MEALS

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Last updated: 05 Jan 2025

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Abstract

This study was conducted in Assiut, Egypt, to investigate the prevalence of Listeria monocytogenes in a total of 75 ready-to-eat (RTE) cooked chicken meals collected from different restaurants. All isolates were further examined for the virulence marker gene and antibiotic resistance genes. L. monocytogenes were isolated from 4(5.3%) of the samples analyzed, including 2(8%) of chicken shawerma, 1(4%) of chicken burger and 1(4%) of chicken breast fillet. All the recovered L. monocytogenes organisms were confirmed by PCR assay for the presence of 16S rRNA gene and all of the tested isolates harboured this gene, among which 100% were revealed to incode inlA and inlB virulence genes. Whereas, all four (100%) isolates of L. monocytogenes were found to harbor mefA gene (macrolides resistance gene) and Aad6 gene (aminoglycosides resistance gene). While, Kan gene (Kanamycin resistance gene), tetM gene (tetracycline resistance gene) and Cat gene (chloramphenicol resistance gene) couldn't be detected in any examined strains. These results signify the importance of sustained surveillance of L. monocytogenes in cooked chicken meat to minimize the risk of contamination and protecting consumers against outbreaks.

DOI

10.21608/avmj.2018.169008

Keywords

Key words: L. monocytogenes, Virulence genes, RTE cooked chicken meals

Authors

First Name

SOHAILA, F.H.

Last Name

EL-HAWARY

MiddleName

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Affiliation

Department of Food Hygiene, Animal Health Research Institute, Agriculture Research Center, Assiut Provincial Lab.

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First Name

MOHAMED, H.

Last Name

MOHAMED

MiddleName

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Affiliation

Department of Food Hygiene, Animal Health Research Institute, Agriculture Research Center, Assiut Provincial Lab.

Email

sahlol72@yahoo.com

City

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Orcid

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First Name

SAYED, H.

Last Name

AL-HABATY

MiddleName

-

Affiliation

Department of Bacteriology, Animal Health Research Institute, Agriculture Research Center, Assiut Provincial Lab.

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Volume

64

Article Issue

159

Related Issue

24309

Issue Date

2018-10-01

Receive Date

1999-11-30

Publish Date

1999-11-30

Page Start

85

Page End

95

Print ISSN

1012-5973

Online ISSN

2314-5226

Link

https://avmj.journals.ekb.eg/article_169008.html

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https://avmj.journals.ekb.eg/service?article_code=169008

Order

11

Type

Research article

Type Code

1,840

Publication Type

Journal

Publication Title

Assiut Veterinary Medical Journal

Publication Link

https://avmj.journals.ekb.eg/

MainTitle

VIRULENCE GENES OF LISTERIA MONOCYTOGENES ISOLATED FROM SOME READY-TO-EAT CHICKEN MEALS

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Article

Created At

23 Jan 2023