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

Philadelphia health officials say a goose found next to Carroll Park in West Philadelphia had highly infectious bird flu.

An ongoing bird flu epidemic has forced farmers to kill millions of egg-laying hens, leading to a serious shortage.

A snow goose in West Philadelphia ’s Carroll Park neighborhood is the city’s first suspected case of a highly contagious ...

Many agencies in the U.S. have been tracking the H5N1 bird flu outbreak, which has been increasingly spreading.