Bird Flu Pandemic 2025. This new bird flu vaccine replaces the h5n1 strain with the circulating virus. The first human case of h5n1 bird flu linked to an outbreak in dairy cows in the united states was reported on april 1, 2025, in texas.

It was also likely the first human infection. Without a sharp pivot in state and federal policies, the bird flu virus that has bedeviled american farms is likely to find a.