The HPAI H5N1 virus has spread globally, infecting birds, mammals, and some humans. Most human cases are mild.

As the seasonal flu picks up, there are even more opportunities for the bird flu to acquire mutations as the different ...

Doctors say the case of a teen left in critical condition shows H5N1 "can cause severe human illness." Mutations in the virus are deepening concerns about the spread of H5N1.

The agency says it is looking for red flags, but the risk to the public still remains low. Meanwhile, a Louisiana patient with a severe case of bird flu showed worrying mutations in the samples ...

The US hasn’t learned lessons from the Covid-19 pandemic that it could use to mitigate the threat of pathogens like H5N1 bird ...

The virus in the first severe human bird flu case in the U.S. was found to have mutated. Follow Newsweek's live blog for ...

When, where and how the H5N1 bird flu virus may evolve and its capacity to spark a pandemic is hard to predict — in part, ...

Maricopa and Coconino counties reported new cases of bird ... Evidence of the bird flu virus, H5N1, in Coconino County wastewater, is the first of its kind this year in Arizona.

The deadly bird flu variant H5N1 first emerged in China in 1996, but over the last ... flu is knocking on our door and could start a new pandemic any day". "A bird flu pandemic would be one ...

The deadly bird flu variant H5N1 first emerged in China in 1996, but over the last ... flu is knocking on our door and could start a new pandemic any day". "A bird flu pandemic would be one ...

He said one concern would be the virus combining with another in a cow or a pig and creating a new type of virus that can more easily infect humans. It’s possible to contract bird flu when ...