Colorado officials declared a disaster emergency after a presumptive bird flu outbreak hit a facility with 1.3 million chickens in Weld County. The state is mobilizing resources.

State officials are confirming a suspected outbreak of avian flu among chickens at a large commercial egg farm in Weld County ...

Flu activity has ticked back up slightly in the US, thanks to a very small increase in infections caused by influenza B — viruses distinct from the new subclade K strain that’s been the biggest player ...

The New York State Department of Environmental Conservation (DEC) announced Thursday that it had five preliminary positive cases of highly pathogenic avian influenza, or bird flu, in Suffolk County.

City staff began procedures to dispose of dead birds and sanitize affected areas of the park to help prevent further impacts.

As the highly pathogenic avian influenza outbreak continues, university experts work to develop edible vaccines to protect ...