A second type of the virus, D1.1, has been detected in dairy cattle in Nevada, US. A second type of bird flu H5N1 detected in ...

This is the warning of a new paper in the journal Science Advances, which concluded that vaccinating against the highly pathogenic H5 subtype of avian influenza virus (AIV) may drive viral evolution.

In this prospective observational study, immune protection against H5N1 and H7N9 avian influenza virus (AIV) was almost absent prior to vaccination. However, seasonal influenza vaccines induced a ...

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 ...

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 ...

A study published in Scientific Advances examines how mass vaccination of poultry against H5 subtypes of avian influenza virus (AIV) — including H5N1 and H5N6 — may help to slow the spread of avian ...

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 ...

But how do researchers know that if a person tests positive for influenza A, it’s not H5N1 avian flu? “We don’t have the ability to differentiate through quick, antigen tests at this time ...

Large-scale poultry vaccinations may be driving bird flu evolution, according to a concerning new international study.