As H5N1 bird flu spreads among California dairy herds and southward-migrating birds, health officials announced Friday six ...

Bird flu H5N1 has infected dozens of people in the U.S. this year. Could it trigger the next pandemic? Experts explain the threat and symptoms to watch for.

has so far confirmed 52 human cases of bird flu—otherwise known as avian influenza H5N1—during this year's outbreak: 26 in California, 11 in Washington, 10 in Colorado, two in Michigan and one each in ...

has so far confirmed 52 human cases of bird flu—otherwise known as avian influenza H5N1—during this year's outbreak: 26 in California, 11 in Washington, 10 in Colorado, two in Michigan and one each in ...

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

As a virus scientist in South Africa, I’ve been watching with dread as H5N1 bird flu spreads among animals in the United ...

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 ...

Missouri voters will decide three high-profile ballot measures. The first would establish the right to abortion. The second would require citizenship to vote, which is already a federal ...