Us Bird Flu 2025. For nearly four months, the spread of bird flu in the nation’s dairy cattle has stoked fears that, if left unchecked, the virus could eventually unleash a pandemic. Department of agriculture has counted bird flu in about 190 dairy herds in 13 states since march.

So far, only one human case has been confirmed in the u.s. For nearly four months, the spread of bird flu in the nation’s dairy cattle has stoked fears that, if left unchecked, the virus could eventually unleash a pandemic.