When it comes to the potential of H5N1 avian flu picking up mutations that might lead to human-to-human spread, that "train has already left the station," warns 1 infectious disease expert.

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

NEW YORK (AP) — At least three and possibly up to 15 birds have died of avian flu at two New York City zoos, according to the organization that operates the facilities.

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 symptoms of the virus ...

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

Here are ways to help our feathered friends during bird flu season, and help slow spread of salmonella at feeders, bird baths and poultry enclosures.

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

Most of the bird flu cases reported so far in the U.S. have belonged to an influenza subtype known as HPAI H5N1. The newly ...