The Great Backyard Bird Count is back. Here's how to help scientists track birds and where to find the best birdwatching ...

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 ...

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

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

Bird flu has been detected in a backyard poultry flock in San Mateo, local officials said Tuesday. No human cases have been ...

Authorities in San Mateo County urged residents to take precautions after two cases of bird flu were detected in the county.

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

County officials said the feline case isn't linked to a case of H5N1 found in a San Mateo backyard poultry flock, which health officials confirmed on Tuesday. While there are currently no human ...

Two cases of bird flu were detected in San Mateo County—one in a backyard poultry flock and the other in a stray cat. The cat and poultry flock were euthanized. Authorities said the cases are ...

Scientists found that a pet cat in San Mateo County died of complications related to H5N1 bird flu. The virus was also discovered in a backyard poultry flock in Redwood City. Meanwhile ...

(KRON) — Health officials have confirmed the presence of H5N1 (bird flu) in a backyard poultry flock in San Mateo County. The county said that while there are no current human cases of bird flu ...