Bird Flu 2025 In Cows. Ever since scientists discovered influenza infecting american cows earlier this year, they have been puzzling over how it spreads. On march 16, cows on a texas dairy farm began showing symptoms of a mysterious illness now known to be h5n1 bird flu.

Health officials say there’s very little risk to humans from the bird flu outbreak among dairy cattle, but there’s still much they don’t know. Bird flu cases among farm workers may be.