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Dole’s Listeria Outbreak Has Widened to Canada

January 28, 2016, 9:30 PM UTC
Packaged Salad Is The Second Fastest Selling Item On Grocery Shelves
SAN FRANCISCO - JUNE 19: Dole Pre-Packaged salad sits on the shelf at a Bell Market grocery store June 19, 2003 in San Francisco, California. Packaged salad which was near non-existent a decade ago has become the second fastest selling item on grocery shelves behind bottle water, overall the retail market for bagged salad is $2 billion annually. (Photo by Justin Sullivan/Getty Images)
Photograph by Justin Sullivan — Getty Images

The U.S. Centers for Disease Control and Prevention says 15 people have been infected from a strain of listeria linked to salad packs produced by Dole Food. Canada is also reporting some illnesses in a new update to the case.

There are now three additional illnesses tied to the investigation, including one death in Michigan as a result of listeriosis, according to the CDC. The disease, usually caused by food contaminated with the bacterium Listeria monocytogenes, often affects older adults, pregnant women, newborns, and adults with a weakened immune system.

The case involving Dole was first disclosed earlier this month and in the wake of that news, Dole voluntarily recalled all salad mixes produced in the Springfield, Ohio processing facility tied to the illnesses. Though the CDC’s investigation began in September, the source of the illness wasn’t known until earlier this month when a lab result from a packaged salad was linked to the Ohio facility.

In addition to the cases in the U.S., the Public Health Agency of Canada says seven people in five provinces were infected with the same outbreak strain of listeria. Lab results have shown that the isolates found in the ill people in Canada were highly related genetically to the cases in the U.S.