H5N1, known as bird flu, has been found in San Mateo County this week, according to state and local health officials. San Mateo County officials said Thursday that bird flu was found in a stray cat in Half Moon Bay.

Authorities in San Mateo County are asking people to take precautions after two cases of bird flu were detected there. The first case was in a backyard poultry flock in the city of San Mateo. Then, most recently,

The growing bird flu outbreak in the Bay Area is a reason to contact your veterinarian if you suspect your pet could be ill. Health leaders on the Peninsula are warning pet owners to be on the lookout for symptoms after a stray cat came down with bird flu.

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