Imported from NNDSS: Listeriosis, Probable
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**Listeria monocytogenes** was first identified in animals in 1926 by E.G.D. Murray. It was recognized as a cause of human disease in the 1930s, gaining significant public health attention with large foodborne outbreaks in the late 20th century. It remains a crucial food safety concern due to its severe impact on vulnerable populations.
Listeriosis primarily spreads through the consumption of food contaminated with **Listeria monocytogenes**. This includes raw or undercooked meats, unpasteurized dairy products, soft cheeses, deli meats, and raw produce. Pregnant women can also transmit the bacteria to their unborn or newborn babies.
Contagious Period: Varies by disease
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This event envelope contains reports on Listeriosis clusters and outbreaks in France.
Source: BEACON - View Full Report
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View WHO Resources βDisease information on Virus Watcher is reviewed by our Chief Epidemiologist, a former CDC lead analyst for FluSight forecasting. Outbreak data is aggregated from verified sources including BEACON, ProMED, WHO, CDC, and 50+ national health agencies. This information is for educational purposes and should not replace professional medical advice.
Last reviewed: 2026-06-03
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