Dairy cows can build immunity to HPAI, according to latest research

New research shows that dairy cows develop an immunity to High-Path Avian Flu (HPAI) after initial infections.

The breakthrough comes after cows exposed through an initial infection showed signs of protection against a secondary exposure. Cows exposed for a second time showed no signs of disease. Their milk production remained steady, and the virus was undetectable.

Researchers at the University of Saskatchewan say their study suggests that a vaccine could be highly effective in managing outbreaks. However, they note differences between infection and vaccination and say that more research is needed.

Related Stories
Congressman Dusty Johnson of South Dakota joined us to discuss key ag policy developments and his outlook for agriculture in 2026.
House Agriculture Committee Democrats are calling for action on the Farm and Family Relief Act, warning that proposed SNAP cost shifts to states could reduce food assistance for low-income families amid ongoing tariffs and trade disruptions that continue to strain U.S. farmers.
Record ethanol production and improving blending demand continue to support corn usage despite rising short-term inventories.
Tight beef cow supplies and steady demand point to continued record-level cull cow prices in 2026.
Expanded school access to whole milk provides modest but reliable demand support for U.S. dairy producers.
The American Farm Bureau Federation’s 2026 agenda centers on labor stability, biosecurity, and economic resilience for family farms. Expanded DMC coverage improves risk protection for dairy operations facing tighter margins.
A high-stakes legal case in a South Dakota federal court concerning misleading country-of-origin labeling (MCOOL), such as “Product of the USA,” on food products, will significantly impact U.S. agricultural policy for years to come.
Agronomy experts explain why standing crop residue protects soil and reduces costs for crop growers, while shredding often yields little benefit at higher costs.
Secretary Rollins also met with specialty crop producers at a local strawberry farm to discuss workforce needs and the Trump Administration’s recent wins related to significantly cutting the cost of H-2A labor for California farmers.

Agriculture Shows
Farmweek is broadcast from Mississippi, one of the South’s most geographically diverse states. The Magnolia State’s most important resource is its people—and about a fourth of the state’s population hold jobs tied to agriculture.
“DocTalk” with host Dr. Dan Thomson will be teaming up with practitioners around the country to tackle issues with your livestock.
This high-yield corn contest showcases real-life Corn Warriors dealing with elements that every farmer knows well. Get an authentic look at what it takes to compete in a high-yield corn contest, and see who will take the title of Corn King.
As the trusted voice of the U.S. cattle and beef industry, the National Cattlemen Beef Association strives to share timely, relevant news. NCBA’s “Cattlemen to Cattlemen” is the leading TV show for beef producers to receive cattle industry news, education, and information.