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FAQ Frequently asked questions
What is listeriosis?
Listeriosis is a condition caused by Listeria monocytogenes bacteria. These bacteria are widespread in nature and can be found in the soil, water and in many animals. People most often get infected with Listeria after eating food that is contaminated with the bacteria.
How is listeriosis diagnosed?
Listeriosis is diagnosed by laboratory testing of tissue samples and blood.
Will listeriosis clear on its own?
Most cases of listeriosis will clear after a few days. Complicated listeriosis in high-risk people requires medical attention.
How is listeriosis spread?
Listeriosis is spread via contaminated food. A pregnant woman can transmit the bacteria to her unborn baby.
Can listeriosis be prevented?
Although the chance of infection cannot be completely eliminated, listeriosis can be avoided by practicing good food-handling practices. People at risk can avoid risky foods.
About this article
Author: Dr Idan Ben-Barak PhD, MSc, BSc (Med)
First answered: 20 Oct 2014
Last reviewed: 19 May 2018
Rating: 4.0 out of 5
Votes: 89 (Click smiley face below left to rate)