The carnage began at Año Nuevo State Park, roughly 50 miles south of San Francisco, where a strain of H5N1 bird flu has ...

Avian influenza has reached the U.S. west coast’s marine mammal population. Young northern elephant seals located at Año Nuevo State Park have tested positive for H5N1, a deadly virus also known as ...

Wildlife authorities confirmed Thursday that nine more elephant seals, a sea lion and an otter have died from bird flu at Ano ...

Highly pathogenic bird flu has quietly spread into another cluster of live-bird markets, with federal data and state alerts flagging nine new detections nationwide. Eight are in New York City and one ...

MANILA, Philippines — A bird flu outbreak in Indiana has prompted the Department of Agriculture (DA) to restrict importation ...

An avian flu outbreak at California's Año Nuevo State Park is spreading across the Central Coast, infecting elephant seals, a ...

An avian flu outbreak, which killed several elephant seals at California’s Año Nuevo State Park last month, has spread to ...

The cluster of infections appears confined to an area of San Mateo County, and no cases have been detected at Point Reyes National Seashore.

Experts are closely monitoring the marine animals, flagging mortalities and advising beach visitors to take extra precautions. Meanwhile, a Sonoma County poultry facility was struck by bird flu in ...

The latest strain of the disease, known as H5N1, is now raging through its fourth winter season and is proving deadly to a ...

The H5N1 bird flu outbreak in California elephant seals has spread to other marine mammals, including a sea otter and sea lion. But wildlife officials are hopeful the outbreak will remain contained.

Two weeks after scientists confirmed the first-ever outbreak of avian influenza, or bird flu, in elephant seals along the ...