Oct. 7 (UPI) -- Federal health authorities are warning of potential listeria contamination of ready-to-eat meals by HelloFresh that contain recalled frozen spinach.

The public health alert from the Food Safety and Inspection Service of the U.S. Department of Agriculture was issued Monday over two HelloFresh meal kits: HelloFresh Ready Made Meals Cheesy Pulled Pork Pepper Pasta and HelloFresh Ready Made Meals Unstuffed Peppers with Ground Turkey.

Both products were shipped directly to HelloFresh subscribers.

There have been no confirmed adverses effects associated with the outbreak. The FSIS was notified of the potential contamination by FreshRealm, which produced the meals. The company had discovered the spinach used in its products had tested positive for listeria.

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