Bird flu is spreading in across the U.S. this spring, impacting countless birds and raising concerns for farmers. Here's how ...

The avian flu is normally hosted in birds and is primarily spread across flock through mucous, saliva or feces. The virus is not frequently transmitted from person-to-person, but can transfer from ...

The first seven cases of avian influenza were confirmed by preliminary testing at UC Davis and confirmatory testing by the ...

Strains of highly pathogenic avian influenza virus have been present in Pennsylvania’s wild birds since early 2022.

After a catastrophic outbreak of bird flu devastated southern elephant seal populations in 2023, scientists are on high alert.

The number of birds affected by Pennsylvania’s worst avian flu outbreak since the 1980s is close to 8 million. USDA’s Animal ...

But why? Experts refer to the disease impacting both domesticized and wild birds as HPAI — though most Americans would recognize the illness as bird flu, or avian influenza. As of Feb. 26, the 2026 ...

The confirmation last week of H5N1 bird flu in northern elephant seals at California’s Año Nuevo State Parkhas put wildlife managers and public health officials on alert.

When biologists first noticed increased bird flu cases in October, 49 cases had been reported. But because they can only test a limited number of carcasses, the true number is likely higher.

Wisconsin's fourth largest egg producer, Daybreak Foods, faces two more bird flu outbreaks in less than 2 weeks, impacting millions of hens.

Poultry boss Mark Gorton says bird flu is "not going away" and is a threat all year round.