Studies suggest that people who had seasonal flus or vaccinations have low antibody levels against H5N1 bird flu.

Dairies say the USDA relief money helped them sustain operations as bird flu decimated milk production, but critics say the ...

The H5N1 bird flu virus has historically extracted a heavy toll when it infects humans, with nearly half of confirmed cases ...

The H5N1 bird flu has been spreading widely among wild birds, poultry and other animals around the world for several years, and starting early last year became a problem in people and cows in the U.S.