"The Chinese poultry lineage may have experienced more vaccine-driven selection compared to other lineages," the researchers ...

Seven Delmarva-region commercial operations have now reported cases of the highly contagious virus.

When a pathogen — any organism that causes a disease — jumps species, scientists get nervous because its genetic makeup can ...

Avian flu is a common illness among birds, but it can spread to humans and other mammals. The virus is shed through ...

A patient in Louisiana has died from avian influenza in what authorities consider to be the first severe H5N1 infection in a ...

The first two cases of bird flu on the University of Massachusetts campus were discovered over the weekend when two deceased ...