Prevalence and phylogenetic characterization of Listeria monocytogenes isolated from processed meat marketed in Egypt
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Updated: Jan 30, 2026

Listeria monocytogenes Infection of the Brain
Published on: October 2, 2018
Yasmin Mohamed1, Waffa W Reda2, Khaled Abdel-Moein2
1Department of Zoonoses, National Research Center, El-Behouth St., Giza, Egypt.
Abstract:
Because of its high case fatality rate, listeriosis locates among the most frequent causes of death due to food-borne illness. In this study, a total of 150 processed meat samples were collected from Giza Governorate, Egypt. Phenotypic and genotypic identification of Listeria monocytogenes was performed using PCR incorporating listeriolysin O virulence gene hlyA followed by DNA sequence analysis. L. monocytogenes was confirmed in 4% of each of beef burger, minced meat, and luncheon samples. Phylogenetic analysis showed that all the six Egyptian isolates have high homology with Colombian isolate (EF030606), except one Egyptian isolate which showed high homology with Indian isolate (EU840690). The public health significance of these pathogens as well as recommended sanitary measures were discussed.
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