Bird flu is widespread in wild birds worldwide and is causing outbreaks in poultry and dairy cows with several recent human ...

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

The new H5N1 version, known as D1.1, was found in dairy cattle in Nevada and is different than the B3.13 type that has spread ...

A version of the H5N1 virus that has killed one person and severely sickened another has been detected in milk samples ...

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

When it comes to the potential of H5N1 avian flu, otherwise known as bird flu, picking up mutations that may lead to human-to ...

A new variant of the H5N1 bird flu — the same one that led to the death of a Louisiana man — has for first the first time ...

Dairy cattle in Nevada have been infected with a new type of bird flu that's different from the version that has spread in ...

The progression of the species-jumping disease has been unprecedented, including the first-ever U.S. cases of infections in ...

Experts said the discovery raises questions about how widely the virus has spread, and underscores the difficulty of ...

Cows in Nevada have been infected with a strain of H5N1 bird flu different from the strain detected in all other herds to this point in the ongoing dairy outbreak. It's the same strain that killed a ...

The data, which appeared fleetingly online on Wednesday, confirmed transmission in two households. Scientists called on the ...