Bird Flu Update 2024 Usa. 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. Then in 2020, the h5 virus rejoined with an n1 gene, this time one that had evolved in wild birds.

A highly contagious strain of avian flu that has likely killed hundreds of birds and spread across more than two dozen states has been detected in a human for the. H5 bird flu is widespread in wild birds worldwide and is causing outbreaks in poultry and u.s.