That's the way one scientist puts it — referring to how infected wild birds survive long enough to spread it to birds and mammals around the world. And that's a serious risk for human health.

Health leaders on the Peninsula are warning pet owners to be on the lookout for symptoms after a stray cat in Half Moon Bay ...

After bird flu was detected in a stray cat in Half Moon Bay this week, health officials in San Mateo County are urging pet owners to contact a veterinarian if their pet shows any ...

H5N1 isn’t going away anytime soon and could become a pandemic. Here are some tips to help you understand your risk ...

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

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

For the first time, a new genotype of avian influenza has been identified in U.S. dairy cows, prompting biosecurity efforts.

About 20 dead or sick ducks and geese were recently discovered near Sands Lake, and testing confirmed they were likely all ...

Experts said it raises new questions about wider spread and the difficulty of controlling infections in animals and the people who work closely with them.

A new variant of H5N1 bird flu, known as D1.1, has been detected in dairy cattle in Nevada. This marks the first time this ...

Avian influenza is widespread among wild birds and is causing outbreaks in poultry and U.S. dairy cows, with several recent cases reported in dairy and poultry workers. There have been 67 reported ...

At least four cattle herds in Nevada have tested positive for a strain of H5N1 bird flu never before seen in cows, state ...