Some of the recent wild bird positives were sampled recently in region where outbreaks were reported at Arizona layer farms.

It is the seventh case of the year and is part of an overall rise in H5N1 infections in Cambodia since late 2023. The patient ...

The H5N1 avian influenza virus has infected birds and mammals around the world. As of June 2025, 70 people have been infected ...

Mammal-to-mammal transmission confirmed: Evidence from mink farms, marine mammals, and dairy cattle outbreaks show that H5N1 is now capable of spreading directly between mammals, a crucial ...

Rising H5N1 bird flu cases in the U.S. prompted the CDC to study the virus in ferrets, revealing it may have the potential to ...

Amidst an ongoing outbreak of a deadly bird flu virus in livestock, the US Department of Agriculture is doing more to prevent ...

But the spread of H5N1 to mammals is what has caused concern. H5N1 is now present in many wild and domestic mammals, including pet cats and dogs, as well as captive zoo mammals and, for the first ...

H5N1 influenza’s origins stretch back to the 1990s. Skip to content ... So have hundreds of mammals of more than two dozen native species, including raccoons, bears, and opossums.

Experts warn about the possibility of a new pandemic in 2025 as the H5N1 bird flu virus spreads across all 50 states, impacting US dairy farms and leading to human infections. Here's what to know.

Rising H5N1 bird flu cases in the U.S. prompted the CDC to study the virus in ferrets, revealing it may have the potential to spread and cause severe symptoms in other mammals.