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CORPUS CHRISTI (AP) – Whataburger says it is limiting its breakfast-serving hours, citing egg shortages due to the Midwest bird flu crisis.

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The fast-food chain will serve breakfast 5 a.m. to 9 a.m. weekdays, and 5 a.m. to 11 a.m. on weekends. It previously was available 12 hours a day. Whataburger says in a statement it’ll let restaurants concentrate their supplies during peak breakfast hours.

The U.S. Department of Agriculture says confirmed outbreaks in the Midwest have cost chicken and turkey producers over 44 million birds. Egg prices have soared.

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Major chains such as Taco Bell, Dunkin’ Donuts and IHOP say they’re monitoring the situation but haven’t yet been affected.

Bob Krouse, CEO of Midwest Poultry Services, said if a company’s supplier is affected by bird flu, it might have trouble finding another one.

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