Colorado is seeing a spike in avian influenza after cases in domestic poultry flocks in just January this year are already ...

Officials are advising residents to avoid contact with sick or dead birds due to high avian influenza activity.

Dozens of migrating birds were found dead or dying at an Amarillo playa lake over the weekend. Avian influenza is suspected.

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

A new nasal spray vaccine for H5N1 bird flu has shown promising early results, raising hopes it could one day be used to help ...

State officials have confirmed an avian flu outbreak in Northern Colorado.

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.

State officials were notified that dead chickens at a Weld County commercial egg-laying facility, which houses over one million chickens, tested positive for highly pathogenic avian influenza.

A new nasal spray vaccine could stop bird flu at the door — blocking infection, reducing spread, and helping head off the next pandemic.

Since it was first detected in the U.S. in 2014, H5N1 avian influenza, commonly known as bird flu, has jumped from wild birds ...

Lt. Gov. Dianne Primavera verbally declared a disaster in Weld County for an outbreak of highly pathogenic avian influenza.

Highly pathogenic avian influenza was detected in a backyard flock in Ottawa County, the Michigan Department of Agriculture and Rural Development announced Tuesday.