( CNN ) Sabra Dipping Co. is recalling 30,000 cases of hummus due to possible contamination with Listeria , the U.S. Food and Drug Administration said Wednesday . The nationwide recall is voluntary . So far , no illnesses caused by the hummus have been reported . The potential for contamination was discovered when a routine , random sample collected at a Michigan store on March 30 tested positive for Listeria monocytogenes . The FDA issued a list of the products in the recall . Anyone who has purchased any of the items is urged to dispose of or return it to the store for a full refund . Listeria monocytogenes can cause serious and sometimes fatal infections in young children , frail or elderly people , and others with weakened immune systems , the FDA says . Although some people may suffer only short-term symptoms such as high fever , severe headache , nausea , abdominal pain and diarrhea , Listeria can also cause miscarriages and stillbirths among pregnant women .
A random sample from a Michigan store tested positive for Listeria monocytogenes . No illnesses caused by the hummus have been reported so far .