Due to possible E. coli contamination, Nestle Toll House is recalling several varieties of its prepackaged refrigerated cookie dough products, according to the U.S Food & Drug Administration. (Click here for a complete list.)

E. coli is a bacteria that can cause abdominal cramping, vomiting, nausea and diarrhea (which could likely be bloody). Children, the elderly and people with weak immune systems are the primary victims of this kind of bacterial infection.

Since March, 66 cases of E. coli infection have been reported in 28 states. Of those cases, 25 people were hospitalized, and seven people had hemolytic uremic syndrome—a severe complication of the condition that damages the kidneys. (No deaths were recorded.)

Already stocked up on Nestlé Toll House cookie dough products? Don’t worry. The company is offering a full refund to consumers who return the products to grocery stores.

For more information, call Nestle Consumer Services at 800.559.5025 or visit Nestle’s web site at verybestbaking.com.