Freeze-dried fruit packs sold at Sam’s Club are being recalled in 43 states due to possible listeria contamination. Customers urged not to eat them.

The contaminated products were discovered through the company’s internal testing, but no illnesses have been reported

Listeria monocytogenes [is] an organism which can cause serious and sometimes fatal infections in young children, frail or elderly people, and others with weakened immune systems," the FDA said.