Apio Inc. of Guadalupe, CA, is expanding a voluntary recall of Eat Smart Salad Shake Ups single-serve bowls. The recall comes after the Canadian Food Inspection Agency informed the company that another random sample of Eat Smart Salad Shake Ups Sweet Kale single-serve bowls tested positive for Listeria monocytogenes.

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

"As a precautionary measure, we are recalling all products produced on the same day, same production line, as the one sample that tested positive by CFIA," the company said. "At this time, we are not aware of any illnesses linked by health officials to this recall and no other products are affected by this recall.

The product was shipped to retail and distributor customers in the following U.S. states: Arizona, California, Colorado, Florida, Iowa, Idaho, Kansas, North Carolina, Ohio, Oklahoma, Oregon, Pennsylvania and Texas. In Canada, the product was shipped to retail and distributor customers in the following provinces: Alberta, British Columbia, Ontario, Quebec and Saskatchewan.

Apio said it has already notified its retail and distributor customers who were shipped the affected product.