Panera Bread has issued a recall for some of its cream cheese products over listeria contamination concerns.

The restaurant chain said it is voluntarily recalling all varieties of its 2 oz. and 8 oz. cream cheese products “out of an abundance of caution.” Panera said no illness have been reported. 

The affected products have an expiration date of on or before April 2, 2018. The recall only affects cream cheese sold in Panera Bread’s U.S. bakery cafes.

“(The) recall was initiated after samples of one variety of 2 oz. cream cheese from a single production day showed a positive result for the presence of Listeria monocytogenes,” a recall notice posted on Panera’s website stated.

Listeria monocytogenes is an organism that can cause serious and sometimes fatal infections in young children, frail or elderly people, and others with weakened immune systems, according to the FDA.

Consumers who purchased the recalled products are advised to discard them immediately and contact Panera Bread Customer Service at 1-855-672-6372 from Monday through Sunday, 5 a.m. to 10 p.m. CST, or visit Panera.custhelp.com for a full refund.