The Canadian Food Inspection Agency is investigating a Toronto plant owned by Maple Leaf Foods Inc. after some its deli meat tested positive for the listeria pathogen.
The move comes after U.S. inspectors raised concerns three times about suspected monitoring deficiencies at the Cappola Food Inc. plant in suburban North York, which produces meat for customers in Canada and the United States.
A CFIA listeria review team arrived Friday at the plant, a joint investigation by CBC and the Toronto Star has learned.
Cappola is a wholly-owned subsidiary of Maple Leaf Foods, a major processor still recovering from last summer's listeriosis outbreak, which killed at least 20 people and triggered the largest meat recall in Canadian history.
Cappola's website says the company produces Italian-style deli meats, specializing in prosciutto.
In a recent interview, Maple Leaf Foods spokeswoman Linda Smith confirmed the positive listeria test results and said the company is co-operating with the CFIA.
In the aftermath of the 2008 listeriosis outbreak, Maple Leaf pledged that monitoring would be increased.