Health officials in Canada are investigating a Listeria monocytogenes outbreak that has sickened seven people in five provinces.

Ontario map/public domain wikimedia commons
Ontario map/public domain wikimedia commons

The Public Health Agency of Canada reports the source of this outbreak has not been confirmed. However prepackaged leafy greens, salad blends and salad kits are food items being investigated.

Currently, there are seven (7) cases of Listeria monocytogenes in five provinces related to this outbreak: Ontario (3), Quebec (1), New Brunswick (1), Prince Edward Island (1), and Newfoundland and Labrador (1). Individuals became sick between September 2015 and early January 2016. The majority of cases (71%) are female, with an average age of 81 years. All cases have been hospitalized, and one person has died, however it has not been determined if Listeria contributed to the cause of death.

Listeria monocytogenes is an organism which can cause serious and sometimes fatal infections in young children, frail or elderly people, and others with weakened immune systems.  Although healthy individuals may suffer only short-term symptoms such as high fever, severe headache, stuffiness, nausea, abdominal pain and diarrhea, Listeria infection can cause miscarriages and stillbirths among pregnant women.

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