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Christine Dumontet : Questions santé voyage et vaccination

President Dumontet CSV Inc. Nurse

Spain: Listeriosis

30 August 2019

Spain: Listeriosis

As of August 26, 2019, 196 confirmed cases of listeriosis have been reported in Andalusia, Spain.

The epidemic has been associated with the consumption of roast pork from Seville, Spain.

 

Listeriosis is a disease caused by the consumption of food contaminated with Listeria monocytogenes. This bacterium is found in the environment, especially in the soil, vegetation, water and stool of some animals.

 

Listeria bacteria can be found in the following food products:

  • meats eaten raw, for example in the form of tartar;
  • raw fish, consumed in the form of tartar or sushi, sashimi and maki;
  • products made from raw or unpasteurized milk;
  • prepared foods that may have been contaminated during manufacture (after cooking, before packaging), for example:
  • ready-to-eat products,
  • smoked fish, like salmon,
  • soft and semi-soft cheeses made from pasteurized milk,
  • cooked charcuterie products, such as pâtés and spreads, rillettes and fermented sausages,
  • hot dog sausages;
  • fresh products, such as pre-packaged salads, cantaloupes.
  • The bacteria that causes listeriosis is destroyed by cooking.
  • The bacteria can also multiply at cold temperatures (4 ° to 10 ° C), for example in foods stored in the refrigerator.

Finally, Listeria contamination can occur as a result of product handling, by cross-contamination, that is to say by direct contact of healthy products with contaminated products.

In general, it is recommended to avoid eating foods that may be contaminated with listeria, especially for people at risk.

Source: NaTHNaC: Outbreak surveillance

Source: Government of Québec: Listeriosis