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Listeria monocytogenes

Welcome to the Listeria monocytogenes Resource Centre hosted by the Irish Microbial Risk Assessment Network. The resource is divided into several sections as outlined below:

What is Listeria monocytogenes?

Listeria monocytogenes is a Gram-positive, rod-shaped, facultative bacterium, that is among the leading causes of death from foodborne illness. Although the number of people infected by foodborne Listeria is comparatively small, this bacterium is one of the leading causes of death from foodborne illness. It can cause two forms of disease. One can range from mild to intense symptoms of nausea, vomiting, aches, fever, and, sometimes, diarrhea, and usually goes away by itself. The other, more deadly form occurs when the infection spreads through the bloodstream to the nervous system (including the brain), resulting in meningitis and other potentially fatal problems.

Taken from the Bad Bug Book - Foodborne Pathogenic Microorganisms and Natural Toxins - Second Edition.


General information on Listeria monocytogenes

The US Food and Drug Administration Bad Bug Book

FSAI Listeria moncytogenes Factsheet

FSAI: The control and management of Listeria monocytogenes contamination of food

Useful links

European Union Reference Laboratory organisation

Food Standards Agency (Northern Ireland)
Food Safety Authority of Ireland
European Food Safety Authority

Listeriosis Surveillance ROI
Listeriosis Surveillance NI





This project is funded by the Irish Government under the National Development Plan 2000 – 2006 Food Institutional Research Measure (FIRM)
The Department of Adriculture, Fisheries & Food, Ireland. Logo

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