If you have sick birds in your BACKYARD flock, please report them to WSDA’s Sick Bird Hotline at 1-800-606-3056. If your farm ...

Recent viral mutations have shown avian influenza’s adaptability to mammalian hosts, prompting infectious disease, animal ...

The H5N1 avian influenza virus is mutating to evade immune defenses in mammals following prior infection or vaccination.

Over 35 million birds, mostly egglayers, have been lost in the United States by highly pathogenic avian influenza since Jan.

Avian influenza—which has devastated poultry flocks, wildlife populations and increasingly poses a public health risk—has now ...

Spring migration is currently underway. Now is the time for those with poultry and dairy to ramp up biosecurity efforts, ...

An avian influenza vaccine for layers, broilers, and practical for farmers was developed thanks to innovative technology ...

Mar. 3, 2025 — As highly pathogenic H5N1 avian influenza continues to spread in the U.S., posing serious threats to dairy and poultry farms, both farmers and public health experts need better ...

One year since it was discovered in Texas dairy cows, epidemiologists have their hands full tracking the virus’ spread.

As the H5N1 avian influenza outbreak continues, scientists are working to better understand the virus's threat to human ...

Zoetis received conditional USDA approval for an avian flu vaccine. Major poultry and dairy organizations back vaccine use to control the virus. The Trump administration is rolling out a new ...