Related Experiment Video
Updated: May 26, 2026

Oral Transmission of Listeria monocytogenes in Mice via Ingestion of Contaminated Food
Published on: May 6, 2013
Listeria spp. in Street-Vended Ready-to-Eat Foods
Moustafa El-Shenawy1, Mohamed El-Shenawy, Jordi Mañes
1Department of Food and Environmental Microbiology, National Research Center, Dokki, Cairo 12311, Egypt.
Abstract:
Street-vended ready-to-eat food sold in Egypt, including sandwiches and dishes of traditional food, was examined for the presence of Listeria species. Out of 576 samples, 24% were found to contain Listeria species. L. monocytogenes and L. innocua were isolated from 57% and 39% of the contaminated samples, respectively. Other Listeria spp. were detected with lower frequency. L. monocytogenes of ≥10(3) CFU/g were detected in 7% of the total examined samples, which represent 49% of the contaminated food samples (meat, poultry, seafood, dairy products, and products of plant origin). Most of the samples contaminated by L. monocytogenes had high levels of total viable bacterial counts. The results obtained may help to clarify the epidemiology of listeriosis in the country and draw the attention of the decision makers to issue hygienic regulations for food processing industries as well as street vendors in order to ensure safe street-vended ready-to-eat food.
More Related Videos
05:49Tracking Microbial Contamination in Retail Environments Using Fluorescent Powder - A Retail Delicatessen Environment Example
Published on: March 5, 2014
09:18Assessing Bacterial Invasion of Cardiac Cells in Culture and Heart Colonization in Infected Mice Using Listeria monocytogenes
Published on: May 27, 2015
Related Concept Videos
Reservoir of Infection
Investigation of Disease Outbreaks
Microbial Spoilage of Food
Bacterial Gastroenteritis
Microbes in the Production of Fermented Foods
Microbes in Food Production