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

Colorado officials declared a disaster emergency after a presumptive bird flu outbreak hit a facility with 1.3 million ...

Colorado Lt. Gov. Primavera, as acting governor, issued a verbal disaster declaration for avian flu in Weld County.

A commercial egg laying flock in Colorado and a commercial broiler flock in Maryland are the United States’ most recent ...

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

An avian flu outbreak is occurring in Weld County.

Colorado quietly flipped into disaster mode Thursday night, after a suspected bird flu outbreak at a massive Weld County egg ...

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

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

Prior seasonal influenza virus immunity did not impair antibody responses or protection conferred by the intranasal H5N1 vaccine.

Suffolk Owl Sanctuary falls within the disease protection zone and is limiting its activities.