Scientists provided the most complete view of bird flu's spread through wild bird populations across North America, explaining how the dominant strain advanced, maintaining the risk of human ...

Authorities were worried about avian influenza coming in from the north, until the virus started moving across the Southern ...

On a remote beach near Esperance, Western Australia, two sick seabirds have brought the bird flu crisis to Australia. Testing has confirmed highly pathogenic avian influenza (HPAI) H5N1 in a brown ...

This is not the moment to call defeat. There is a chance we can stop this infectious virus, this time at least.

Highly pathogenic avian influenza H5N1 has killed black vultures across the southeastern United States in repeated waves that, unlike outbreaks in most wild bird species, have persisted year-round.

The H5N1 strain of highly pathogenic avian influenza has spread across the globe, infecting hundreds of birds and mammal species. Few places offer a clearer view of the virus’s spread in urban ...

Starting in 2024, severe infections from avian influenza were reported in North America. Every severe case was of this newly dominant D1.1 strain, though at the time, the disparate geographical ...