The progression of the species-jumping disease has been unprecedented, including the first-ever U.S. cases of infections in ...

The growing warnings about the avian flu, also known as H5N1 or H5N9 flu, have led the public to question whether the infection can be spread to humans through eating eggs or chicken. Here's what ...

Between 500 and 1,000 suspected cases of H5N1, also called avian flu, have been reported in Massachusetts birds. Sharing scientific data is important to track the outbreak. Just as Massachusetts ...