The concerning bird flu outbreak that has spread to four humans so far as it expands quickly in the U.S. has jumped to dozens ...

Zoonotic transmission of avian influenza in the U.S. prompts worry as virus reaches cats and dogs in multiple states. A highly infectious type of avian influenza, commonly known as bird flu, has ...

A subtype of bird flu caused by avian influenza A (H5) virus has been spreading worldwide in wild birds with a few outbreaks in poultry, dairy cows and other mammals across the United States ...

Experts warn about the possibility of a new pandemic in 2025 as the H5N1 bird flu virus spreads across all 50 states ... poultry flocks and other mammals — humans. The Global Virus Network ...

As bird flu cases inundate ... "The more mammals it infects," Adalja said, "the more chances it has to adapt to mammals." More than 166 million birds across all 50 states have been infected ...

Bird flu has been circling the globe for decades. So the discovery in 2024 that the deadly pathogen had jumped from a wild bird to a cow came as a shock to virus watchers. Now, in just over a year ...

As the H5N1 bird flu virus mutates and rapidly spreads through American cattle ... Soon, there were more sick cattle in neighboring states. Colorado veterinarian Dr. Kay Russo joined a conference ...