While the H5N1 bird flu keep spreading, the first reported H5N9 outbreak in the United States has been identified on a duck ...

The virus was reported in a commercial flock of ducks. It’s the first time the subtype has been detected in the United States ...

The progression of the species-jumping disease has been unprecedented, including the first-ever U.S. cases of infections in ...

H5N1, or bird flu, poses a limited risk to humans but remains a serious threat. Learn how it spreads, its symptoms, and key ...

"The Chinese poultry lineage may have experienced more vaccine-driven selection compared to other lineages," the researchers wrote.

It is possible H5N9 might have arisen through "reassortment" in the birds, where H5N1 can genetically mix with other influenza viruses inside of an infected animal. "H5N1 reassorts with other ...

The Centers for Disease Control and Prevention are monitoring the bird flu situation in the United States. Here's what to ...

In today’s Health Alert, a new strain of bird flu - H5N9 - has been detected in the U.S. The first confirmed case was found ...

The first outbreak of H5N9 bird flu in poultry has been reported in California on a duck farm leading to the culling of ...

Here's what you need to know about the highly pathogenic H5N1 avian influenza, and what bird flu might mean to you, your ...

The findings come at a time when outbreaks of bird flu -- a different subtype of the ... diagnosed with influenza, a recent study reports an ... Single Mutation in H5N1 Influenza Surface ...

The H5N9 strain of avian influenza is much more rare than the H5N1 which has been responsible for most of the reported human ...