A number of bird flu cases have been reported in the Chicago area in recent weeks, leading to many questions about how quickly the virus is spreading and how worried residents should be.

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

A commercial poultry farm on Long Island, New York, is being forced to kill thousands of ducks after health officials detected cases of bird flu. The owner of Crescent Duck Farm in Aquebogue — about ...