MINNETONKA, Minn. (AP) — A Minnesota food company is widening its recall of hard-cooked eggs because of a potential for listeria contamination.

Michael Foods, of Minnetonka, is recalling eggs in brine sold in 10- and 25-pound pails for institutional use in 34 states. The eggs carry six brand names: Columbia Valley Farms, GFS, Glenview Farms, Papetti's, Silverbrook and Wholesome Farms.

The U.S. Food and Drug Administration says the eggs were produced at Michael Foods' plant in Wakefield, Neb., and were bought by food distributors and manufacturers. There have been no reports of illness connected to the eggs. But, the company says the eggs have the potential to be contaminated with a strain of listeria that can cause serious infections in those with weaker immune systems.

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U.S. Food and Drug Administration: http://www.fda.gov/Safety/Recalls/ucm289920.htm