H5N1 has been the dominant grouping of strains fueling this past year's outbreaks in the U.S., with different variants of that virus spreading in wild birds, poultry flocks, dairy cattle ...

In early December 2024, a group of researchers published an article in the journal Science, entitled "A single mutation in bovine influenza H5N1 hemagglutinin switches specificity to human receptors".

The U.S. hasn’t been able to control the spread of the H5N1 bird flu. And now, there’s been a reported outbreak in the U.S. of another strain of avian influenza, H5N9. This H5N9 outbreak ...

Scientists also know a lot more about H5N1 bird flu than they did the SARS-CoV-2 virus, and the US has been preparing for the threat of a new flu outbreak for a long time. Still, the virus is ...

It also recommends asking about recent close contact with a symptomatic person with a possible or confirmed case of H5N1. Demetre Daskalakis, MD, MPH, director of CDC's National Center for ...

Whether it's ducks or chickens, since the current strain of bird flu, H5N1, reached the United States in 2022, over 148 million birds have been ordered euthanized. "It's a staggering number ...

A surge in H5N1 virus cases among pets, particularly cats, has raised alarms about raw pet food safety. The virus, devastating bird populations nationwide since 2022, has infected cats through ...

The H5N9 strain was found at a California duck farm that has already lost nearly 119,000 birds to the more common H5N1 variant of the disease, which is formally known as Highly Pathogenic Avian ...