Three of the four places the U.S. Department of Agriculture's Food Safety and Inspection Service identified as having received shipments of recalled Butterball ground turkey are food banks.

The FSIS released a list on Friday of locations in four states that it "has reason to believe" received the raw food that may be contaminated with salmonella. More than 78,000 pounds of Butterball raw ground turkey were recalled on Wednesday.

The locations are:

• Second Harvest Heartland in Maplewood, Minnesota

• Second Harvest Food Bank in Raleigh, N.C.

• St. Joseph Food Program in Menasha, Wisconsin

• Demoulas in Andover, Massachusetts

"This list may not include all retail locations that have received the recalled product or may include retail locations that did not actually receive the recalled product," FSIS said.

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Investigators discovered the problem during an outbreak of Salmonella Schwarzengrund, that sickened five people from two states, according to the FSIS.

Wisconsin officials took three samples of Butterball ground turkey from a home where four of the patients live. The samples were "closely related genetically" to those taken from the sick people.

"Everybody’s safety is important in this," said Butterball spokeswoman Christa Leupen. "We follow the same protocol whether we're selling or giving to a food bank or a retailer."

The nationwide recall is for:

• 48-ounce plastic wrapped tray containing Butterball everyday Fresh Ground Turkey with Natural Flavoring (85% lean/15% fat), with sell- or freeze-by date 7/26/18, lot code 8188, and UPC codes 22655-71555 or 22655-71557

• 48-ounce plastic wrapped tray containing Butterball everyday Fresh Ground Turkey with Natural Flavoring (93% lean/7% fat), with sell- or freeze-by date 7/26/18, lot code 8188 and UPC code 22655-71556

• 16-ounce plastic wrapped tray containing Butterball everyday Fresh Ground Turkey with Natural Flavoring (85% lean/15% fat), with sell- or freeze-by date 7/26/18, lot code 8188 and UPC code 22655-71546

• 16-ounce plastic wrapped tray containing Butterball everyday Fresh Ground Turkey with Natural Flavoring (93% lean/7% fat), with sell- or freeze-by date 7/26/18, lot code 8188 and UPC codes 22655-71547 or 22655-71561

• 48-ounce plastic wrapped tray containing Kroger Ground Turkey Fresh (85% lean/15% fat), with sell- or freeze-by date 7/26/18, lot code 8188, and UPC code 111141097993

• 48-ounce plastic wrapped tray containing Food Lion 15% fat ground turkey with natural flavorings, with sell- or freeze-by date 7/26/18, lot code 8188 and UPC code 3582609294

The 78,164 pounds of prepackaged poultry was produced on July 7, 2018, and have establishment number EST. P-7345 inside the USDA mark of inspection.

"Because these products were packaged nine months ago, it's pretty unlikely any of this product is still in retail stores," Leupen said on Wednesday. "Obviously, we’re concerned consumers have this product in their freezers."

People who have packages of the recalled turkey should throw them or return them to where they were bought, the FSIS said.

Customers with questions may call Butterball at 800-288-8372.

Follow USA TODAY reporter Zlati Meyer on Twitter: @ZlatiMeyer

This article originally appeared on USA TODAY: Some Butterball ground turkey, recalled due to salmonella concerns, sent to food banks