H5N1, known as bird flu, has been found in San Mateo County this week, according to state and local health officials.

As bird flu continues to spread across the United States, questions have emerged about the risk of contracting the virus from ...

H5N1, known as bird flu, has been detected in a backyard poultry flock in San Mateo County, the California Department of Food ...

Although it is standard procedure to kill flocks with the outbreak of bird flu, posts on social media twisted the truth.

The discovery of bird flu in the San Mateo backyard flock prompted health officials to remind people to take biosecurity ...

A branch of the H5N1 bird flu family tree that hadn't previously been seen in cattle has now been detected in dairy cows.

Nevada dairy cattle infected with a new bird flu strain, Type A H5N1 D1.1, raising concerns of multiple transmission channels ...

Bird flu can be transmitted from infected birds to other animals and potentially humans directly from the birds, virus-contaminated environments or an infected animal, according to the CDC.

Until last week, all bird flu in dairy herds had been identified as the B3.13 variant, which was believed to have come from ...

Herds of cattle in Nevada tested positive for the strain of H5N1 bird flu never before seen in cows, state agriculture ...

The Milwaukee County Zoo has closed its aviary for the "foreseeable future" in an attempt to protect its birds from the bird ...

While the risk to humans of exposure from cows or milk remains low, this new flu spillover from birds into cows raises the need for continued surveillance.