Listeria monocytogenes - Definition

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Listeria monocytogenes is a Gram-positive bacterium responsible for listeriosis, a severe infectious disease that affects both people and animals. This bacterium is extremely resistant, and can multiply in environments of between 1°C to 45°C. These unique characteristics make this bacterium incredibly tenacious and means it can flourish in environments like those of food refrigeration. For this reason, this bacterium can be ingested through contaminated food.