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

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

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 ...

There's an outbreak of bird flu in Bucks County parks, officials announced. And though infections in cats and dogs are rare, they may be fatal.

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

Park goers may have noticed an increase in dead or dying birds lately amid an active outbreak of Highly Pathogenic Avian Influenza, or bird flu, throughout the state. New Jersey reported the ...

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

In 2026, bird flu has already been detected in six backyard flocks in Iowa. Four of those were confirmed across the span of ...

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

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.

According to the governor's office, more than half of all avian flu cases in the United States are in Pennsylvania.

At least 10 dead geese were recently found at Verona Park in Essex County, New Jersey.