San Mateo County public health officials reported finding H5N1 bird flu in a pet cat and a backyard poultry flock.

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

Are people at risk for bird flu? How can I protect myself? Bird flu’s risk for the general public is still low, with no signs ...

After bird flu was detected in a stray cat in Half Moon Bay this week, health officials in San Mateo County are urging pet ...