Bird flu continues to spread across the U.S., with new infections in Hawaii and continued human outbreaks in California.

California health officials reported Tuesday that a child in Alameda Co. has been infected with bird flu; source unknown.

In 2009, H1N1 bird flu caused the first global flu pandemic in 40 years, with the first infections detected in California.

As the number of human bird flu cases have continued to rise across the US, H5N1 infections have sparked near fears about ...

Ducks and geese on a backyard farm in Oahu, the state's main island, tested positive for H5N1 last week, which was likely ...

However, things have escalated another step it now appears to be posing a rising threat to human health after the first human ...

There is an inherent conflict of interest -- and the potential for injury to public health -- when a federal department both ...

Officials suspect wild migrating birds are likely to blame for the first known infection of a flock in Hawaii, which had been the last state in the country with no reported cases in poultry or wild ...

The H5N1 virus that infected a Canadian teen appears not to have spread, but it shows signs of mutation that makes flu ...

Poultry on a commercial farm in England have been infected with the bird flu virus, the U.K. government said Sunday. The H5N1 virus was found in kept birds in St. Ives, a seaside town in Cornwall. All ...

A teenager in British Columbia who is being treated in the critical care unit was confirmed to have been infected with the ...

A hospitalized Canadian teen has health officials in both Canada and the U.S. expressing warnings over bird flu cases.