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Minnesota livestock growers on high alert as bird flu has jumped to cattle in 3 other states

Christopher Vondracek and Brooks Johnson, Star Tribune on

Published in News & Features

As bird flu is found in more mammals, concerns are growing the virus could reach humans.

On Monday, the Centers for Disease Control and Prevention reported a human exposed to cattle in Texas had become sick with avian influenza. The person had red eyes, with symptoms resembling conjunctivitis, and was treated with an antiviral drug for the flu.

That's just the second reported human infection in the U.S. during the current outbreak. In 2022, an individual working with poultry in Colorado also tested positive for bird flu and later recovered.

Dr. Michael Osterholm, an epidemiologist at the University of Minnesota, said evidence at this point suggests humans would need to come into close contact with the animals to be infected. Even then, people recover.

"At this point, I agree with the CDC, the risk assessment (for humans) is low," Osterholm said.

The state's agriculture leaders say those working in the industry — especially across dairy-cow-rich central, western and southeastern Minnesota — should be observant of strange behavior in both dairy and beef cows, including lack of appetite and decreased lactation. They say horses should also be watched for unusual changes in behavior.

Moreover, farmers need to prepare laborers, many of whom are immigrants or do not speak English as a first language, to use extra precaution around animals and unpasteurized milk.

"Most of these people working in the parlor are at eye level, and they're working with raw milk," said Armstrong, who underscored calls for farm workers to wear at least goggles and masks in the barns. "I think farmers will do a good job (educating workers) because they recognize how valuable that workforce is and how much they mean to the industry in our country."

Officials said pasteurized milk remains safe to drink. The Food and Drug Administration said last week there "continues to be no concern about the safety of the interstate commercial milk supply," as cow's milk is pasteurized before entering the market. Moreover, only milk from healthy animals is authorized for distribution.


The flu's devastating economic toll for Minnesota's turkey industry remains an unnerving recent memory.

Across the U.S., more than 79 million birds have died from the virus since 2022, according to a federal database. According to a Star Tribune analysis, the federal government paid $135 million in indemnity to Minnesota's turkey and chicken growers.

The disease is largely spread by migratory birds, often through shared water sources with domesticated animals. So far in 2024, the state has only seen three HPAI outbreaks, all in backyard flocks.

"It provides a new dynamic to the outbreak," said Ashley Kohls, executive director of Minnesota Turkey Growers Association. "We're not changing, per se, anything that we're doing."


(Minneapolis Star Tribune staff reporter Brooks Johnson contributed to this report.)


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