Sabra is recalling its hummus products for the second time in a year because of concerns about Listeria monocytogenes found in a processing plant, according to an FDA statement. The voluntary recall covers “certain hummus products made prior to Nov. 8, 2016, due to concerns over Listeria monocytogenes, which was identified at the manufacturing facility but not in tested finished product,” FDA said. A list of products recalled can be found here.

Multistate recalls because of possible Listeria contamination have been linked to frozen vegetables, raw milk, packaged salads, soft cheeses, ice cream, caramel apples, sprouts and other products, according to the Centers for Disease Control Not all of these recalls have been linked to illness, but in 2011 listeriosis traced back to cantaloupes from Jensen Farms in Colorado resulted in at least 33 deaths.

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

Unlike most other forms of foodborne bacteria, Listeria is able to proliferate even in the cold temperatures of a refrigerator. According to CBS News, Sabra recalled products in the spring because of fears about Listeria contamination in the manufacturing facility, although no illnesses were reported. Listeria is found in soil and water and some animals, including poultry and cattle. It can be present in raw milk and foods made from raw milk and can also live in food processing plants