A Chicago company has expanded a recall to include an additional 580 pounds of beef patties because of possible E. coli contamination.

The Illinois Department of Agriculture said Friday that Columbus Meat took the action after state inspectors discovered the same batch of beef was used to produce patties on more than one day.

Patties produced on Dec. 29, Dec. 30, Dec. 31 and Jan. 3 have been added to the recall. It originally included 200 pounds of ground beef made on Dec. 27.

The agriculture department says a sample of the patties tested positive for a strain of E. coli that can cause bloody diarrhea, dehydration, and — in the most severe cases — kidney failure.

The company has received no reports of illness linked to the patties.