You are in charge of the investigation regarding possible exposure to Listeria from packaged salad. Read the following and hen answer the questions: On January 27, Dole voluntarily recalled all salad mixes produced in the Springfield, Ohio processing facility. A list of the recalled brands and types of salad mixes, states where they were sold, and instructions on how to identify them are available on the Advice to consumers page. Three more ill people have been reported from Connecticut, Missouri, and New York. The most recent illness was diagnosed on January 3, 2016. According to the Public Health Agency nada, there are seven people in five Canadian provinces infected with the same outbreak strain of Listeria. First of all, complete the epidemiological triangle for this exposure Can t be Listeria? Explain. Second, Develop a specific case definition for this exposure and then clearly state how you would define a Confirmed case, Probable case, Possible Case and Suspect case. Lastly, how would you gather information regarding the number and location of cases associated with this exposure?
a.
Listeriosis is a type of food poisoning, caused by the gram-positive motile bacterium Listeria monocytogenes. Listeriosis is relatively rare and occurs primarily in new born infants, elderly patients, and patients who are immunocompromised. Symptoms of listeriosis may show up 2-30 days after exposure. Symptoms are mild flu-like headaches, muscle aches, fever, nausea, and vomiting. If the infection spreads to the nervous system it can cause stiff neck, disorientation, or convulsions.
Epidemiologic and laboratory evidence indicated that packaged salads produced at the Dole processing facility in Springfield, Ohio and sold under various brand names were the likely source of this outbreak.
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