The largest fresh egg producer in the US has found bird flu in chickens at Texas and Michigan plants

The largest producer of fresh eggs in the U.S. said Tuesday it had temporarily halted production at a Texas plant after bird flu was found in chickens, and officials said the virus had also been detected at a poultry facility in Michigan.

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In Texas, Ridgeland, Mississippi-based Cal-Maine Foods, Inc. said in a statement that approximately 1.6 million laying hens and 337,000 pullets, about 3.6% of its total flock, were destroyed after the infection, avian influenza, was found at the facility in Parmer County, Texas.

The plant is on the Texas-New Mexico border in the Texas Panhandle about 85 miles (137 kilometers) southwest of Amarillo and about 370 miles (595 kilometers) northwest of Dallas.

“The Company continues to work closely with federal, state, and local government officials and focused industry groups to mitigate the risk of future outbreaks and effectively manage the response,” according to the statement.

“Cal-Maine Foods is working to secure production from other facilities to minimize disruption to its customers,” the statement said.

The company said there is no known bird flu risk associated with eggs that are currently on the market and no eggs have been recalled.

Eggs that are properly handled and cooked are safe to eat, according to the U.S. Department of Agriculture.

The announcement by Cal-Maine comes a day after state health officials said a person had been diagnosed with bird flu after being in contact with cows presumed to be infected, and that the risk to the public remains low.

In Michigan, Michigan State University’s Veterinary Diagnostic Laboratory has detected bird flu in a commercial poultry facility in Ionia County, according to the Michigan’s Department of Agriculture and Rural Development.

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The county is about 100 miles (161 kilometers) northwest of Detroit.

The department said it received confirmation of the disease Monday from the lab and that it is the fourth time since 2022 that the disease was detected at a commercial facility in Michigan.

Department spokesperson Jennifer Holton said Tuesday that state law prohibits the department from disclosing the type of poultry at the facility in Ionia.

The facility has been placed under quarantine and the department does not anticipate any disruptions to supply chains across the state, Holton said.

The human case in Texas marks the first known instance globally of a person catching this version of bird flu from a mammal, federal health officials said.

Dairy cows in Texas and Kansas were reported to be infected with bird flu last week — and federal agriculture officials later confirmed infections in a Michigan dairy herd that had recently received cows from Texas.

The company said Cal-Maine sells most of its eggs in the Southwestern, Southeastern, Midwestern, and mid-Atlantic regions of the United States.

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