CHICAGO (Reuters) - Agricultural giant Cargill Inc. said on Saturday it is recalling over 1 million pounds of ground beef distributed in the United States because of possible E. Coli contamination.

Cargill Meat Solutions said the 1.084 million pounds (491,700 kg) of ground beef was produced at the Wyalusing, Pennsylvania, facility between October 8 and October 11, and distributed to retailers across the country.

The U.S. Department of Agriculture returned a confirmed positive for the E. coli bacteria on a sample produced on October 8, the company said.

Symptoms of E. coli 0157:H7 illness, the strain associated with the recall, include potentially severe stomach cramps, diarrhea and dehydration. Children, the elderly and people with poor immune systems are the must vulnerable.

"No illnesses have been associated with this product," John Keating, president of Cargill Regional Beef, said in a statement. "We are working closely with the USDA to remove the product from the marketplace."

The recalled products have use/freeze-by dates of Oct 19 through Nov 3. Most will have the USDA establishment number of EST 9400 inside the USDA mark of inspection.

In addition there are various weights and varieties of ground beef distributed for further processing and repackaging that will not have the same establishment number.

The recall was the second by Minneapolis-based Cargill in a month. On October 7 the company recalled about 844,812 pounds (383,200 kg) of frozen beef patties produced at a Wisconsin plant.