Bird Flu Continues to Spread Worldwide, Threatening Poultry Supplies

Rescued chickens gather in an aviary at Farm Sanctuary’s Southern California Sanctuary in Acton, Calif., on Oct. 5, 2022. A wave of the highly pathogenic H5N1 avian flu has now entered Southern California as the fall bird migration sets in, raising concerns for wild birds and poultry farms in the region. Mario Tama/Getty Images

Bird flu continues to spread across the globe, threatening stocks of poultry supplies.

The disease is extremely deadly to poultry, so much so that entire flocks are often culled even when only one bird tests positive.