H5N1 influenza is evolving rapidly, weakening the effectiveness of existing antibodies and increasing its potential threat to ...

The virus has already spread among wild birds, poultry, cattle, and even farmworkers, reinforcing the urgent need for new vaccines and preventive measures. H5N1 is a subtype of the influenza A ...

New research suggests that past exposure to seasonal flu viruses may help protect people from severe illness caused by the ...

New computational modeling of avian influenza variants' immunoprotein interactions—developed by a research team at the ...

Very few humans have gone up against bird flu. But we've all dealt with seasonal flu for years. Some of our immune systems ...

The H5N1 avian influenza virus is mutating to evade immune defenses in mammals following prior infection or vaccination.

If you have sick birds in your BACKYARD flock, please report them to WSDA’s Sick Bird Hotline at 1-800-606-3056. If your farm ...

In an update yesterday on scientific investigations related to H5N1 avian flu activity, the Centers for Disease Control and ...

Previous exposures to older flu strains prime the immune system to produce antibodies against bird flu (H5N1).

USDA under then Secretary Tom Vilsack conditionally approved a vaccine made by Zoetis, containing a killed version of an H5N2 variant designed to work against circulating H5N1 variants.

Early flu exposure helps immunity against H5N1 infection, with older adults having stronger antibody responses.