Kansas is experiencing the worst highly pathogenic avian influenza (HPAI) outbreak in the United States, with nearly 414,000 birds affected across both commercial and backyard flocks. HPAI kills nearly 100% of infected birds and is spreading primarily through wild birds, especially migratory waterfowl. The disease’s impact on poultry health and production is severe, and farmers are urged to strengthen biosecurity measures to protect their flocks.

Experts recommend that all poultry owners — from large egg producers to backyard chicken keepers — take proactive steps to reduce exposure and limit potential losses. Key measures include tightening biosecurity protocols, minimizing contact between domestic birds and wild waterfowl, controlling farm traffic and closely monitoring flocks for signs of illness or sudden death. Early detection and disciplined prevention remain the best defenses as the outbreak continues.

Access the USDA’s map of avian influenza cases in commercial flocks in your state to learn more.