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

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

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

For the first time, confirmation of the deadly H5N1 virus has been detected in California's elephant seal population.

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

Scientists estimate more than 60 marine mammals may have been infected by the virus.

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 ...

Health officials are warning beachgoers to stay away from marine life after confirming the state's first cases of bird flu in elephant seals at Año Nuevo State Park in San Mateo County.

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

After H5N1 bird flu was detected in elephant seals gathered at Año Nuevo State Park, other marine mammals have also succumbed, including a sea otter and sea lion. So far, only animals in San Mateo ...

WILDLIFE AUTHORITIES CONFIRMED Thursday that nine more elephant seals, a sea lion and an otter have died from bird flu at Año ...

Health officials are warning beachgoers to stay away from marine life after confirming the state's first cases of bird flu in elephant seals at Año Nuevo State Park in San Mateo County.