A new variant of the bird flu has infected a dairy worker in Nevada marking the state's first human case of the H5N1 avian influenza.

A dairy worker in Nevada has been infected with a strain of H5N1 bird flu—genotype D1.1—that has newly spilled over to cows, the Centers for Disease Control and Prevention has confirmed.

The D1.1 strain of H5N1, now spreading in dairy herds, has a mutation that enhances replication in mammals. Could this be a ...

Nevada confirms its first human case of bird flu amid a growing U.S. outbreak impacting poultry, wildlife and the price of eggs.

The discovery of silent H5N1 infections in unexpected populations, the emergence of new variants, and its potential to evolve ...

New infections in animals should heighten concern of human H5N1.

As bird flu cases inundate more poultry and dairy farms, state officials worry that the Trump administration’s firings of federal scientists and other actions will undermine efforts to track the virus ...

I wonder if we'll have another "is it not contained?!" moment with some Trump official snapping at a reporter for merely asking why a pandemic continues to spread. It is widely understood that 10s ...

The CDC has sequenced bird flu viruses from people in Nevada and Wyoming, and the Trump Administration has released a ...

The CDC posted a bird flu update to the health agency’s website on Wednesday, the first since President Donald Trump took ...