If you’re planning on serving ground beef as part of your Thanksgiving dinner this week, be sure to check the packaging before you start cooking. Swift Beef Company, part of JBS USA, just announced a recall of almost 100,000 pounds of raw ground beef products that may be contaminated with E. coli, according to the U.S. Department of Agriculture’s Food Safety and Inspection Service (FSIS).

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No illnesses have been reported yet, but the products were distributed in California, Nevada, Oregon, Utah, and Washington. Here’s a full list of products included in the recall:

2,000 lb. bulk pallets of Swift Ground Beef 81/19 (81% lean) Fine Grind Combo with the product code 42982

8 to 10 lb. plastic wrapped chubs of “blue ribbon beef” Ground Beef 81/19 (81% lean) Coarse Grind with the product code 42410

8 to 10 lb. plastic wrapped chubs of “blue ribbon beef” Ground Beef 93/07 (93% lean) Coarse Grind with the product code 42413

8 to 10 lb. plastic wrapped chubs of “blue ribbon beef” Ground Beef 85/15 (85% lean) Coarse Grind with the product code 42415

8 to 10 lb. plastic wrapped chubs of “blue ribbon beef” Ground Beef 73/27 (73% lean) Coarse Grind with the product code 42510

You can also check the USDA mark of inspection if you have any Swift Beef Company beef in your freezer—all of the products included in the recall have the establishment number “EST. 628” inside the mark.

The contaminated beef was discovered on November 15 when the FSIS visited Swift Beef Company to investigate a previous FSIS ground beef sample that was collected at a different processing establishment, and tested positive for E. coli. FSIS confirmed that Swift Beef Company was the only source of the contaminated beef products.

E. coli is a potentially deadly bacteria that can cause symptoms like dehydration, bloody diarrhea, and abdominal cramps within two to eight days after exposure. If you’ve eaten any of the products included in the recall and start experiencing these symptoms, you should seek emergency medical care right away.