About 30,000 cases of Sabra hummus are being recalled due to listeria concerns.

Sabra Dipping Co. said the potentially contaminated cases of its classic hummus were sold nationwide. Sabra hummus is widely available at Philadelphia-area grocery stores and markets.

Listeria is a food-borne illness that can cause fever, headaches, stiffness, nausea abdominal pain and diarrhea. Infections can be fatal in young children, the elderly or others with weakened immune systems.

Sabra said no illnesses linked to listeria contamination have been reported thus far.

The company is voluntarily recalling items with five product codes, which are listed on the Food and Drug Administration's website.

Anyone who bought products with those codes should dispose of the items or return them for full refunds.