Exotic serotype enters world's largest beef import market with no domestic vaccine cross-protection. 6,229 cattle confirmed across two northwestern provinces. Mortality in young cattle exceeds 50%.
USDA's Secure Our Herds vaccine program has advanced H5N1 cattle vaccine candidates to field trial stage, creating a bifurcation risk for global dairy and poultry trade: countries that vaccinate face WOAH-triggered trade restrictions, while those that do not continue absorbing culling losses and…
The 2022–2026 US HPAI outbreak has now cost 203 million birds across 1,000+ commercial flocks. An ECDC/EFSA overview flags a potential first H5N1 spillover into European dairy cattle in the Netherlands — carrying major implications for EU dairy export certification.
The US Centers for Disease Control has confirmed HPAI H5N1 is endemic in North American wild birds, meaning annual seasonal reinfection of commercial poultry flocks is now structurally locked in. The 2024-25 season cost US consumers US$14.5 billion i