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

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

Here's what you need to know about bird flu. What is bird flu? The H5N1 bird flu virus has spread among a variety of bird species, including chickens, ducks, turkeys, geese, and many migratory ...

More than 170 species of North American wild birds were infected with bird flu. Here's what it means for your backyard bird ...

The Trump administration has not staffed an office established by Congress to prepare the nation for future pandemics, ...

Existing antivirals may be less effective against this H5N1 bird flu strain, and prevention measures, such as avoiding raw milk consumption and reducing exposure in dairy workers, may be the most ...

Experts are urging cat owners to refrain from feeding their pets raw meat or unpasteurized milk after the bird flu virus was detected in two indoor domestic cats in Michigan. The Michigan State ...

Raw cheese made with milk from dairy cattle infected with bird flu can harbor infectious virus for months and may be a risk to public health, according to a new study from researchers at Cornell ...

Hundreds of samples of raw milk in Minnesota have been tested for bird flu as the state ramps up its effort to slow the spread of the virus. The national effort started in January; Minnesota’s ...

Birds without natural immunity that migrate or roost together in large flocks, such as geese, are most likely to die in large ...

Bird flu has spread widely in poultry, causing egg shortages. Virus spillover has occurred in various mammal species, including humans. H5N1 does not currently have the ability to spread human to ...