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Stone fruit recall widens on possible Listeria outbreak

A California-based fruit producer, who ships to retailers including Kroger, Wal-Mart, and Whole Foods, has expanded an earlier recall of certain fruits to include all products packed at its facility due to possible health risk, the company said in an updated statement on Friday.

The earlier recall covered specific products packed from June 1 through July 12, while the most recent recall now affects all fresh whole fruit—peaches, plums, nectarines and pluots—packed at the company's facility between June 1 and July 17 as it has yet to identify the source of the contamination.

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"We have brought in nationally known experts in food safety to investigate every part of our packing facility, and we are working with the U.S. Food & Drug Administration," said Brent Smittcamp, Wawona Packing Company president.

Wawona Packing Company expanded the nationwide recall "out of an abundance of caution" due to potential contamination of Listeria monocytogenes, an organism that it said could cause serious and/or fatal infections in people with weakened immune systems.

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Traders Joe's, Kroger and Wal-Mart notified its customers about the updated recall in a statement on its website. Whole Foods posted the initial recall on its website, but told CNBC it was not affected by the second recall.

Shoppers should look for a sticker on their fruit that says Sweet 2 Eat, Sweet 2 Eat Organic and Mrs. Smittcamp's, according to the warning.

—By CNBC's Karma Allen

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