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 ...

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 ...

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

All nine macaques given the control developed severe disease when exposed to bird flu, as did all given the smallest dose of ...

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 National Institutes of Health reports that avian influenza A virus, or bird flu, is now widespread in wild birds all over ...

A subtype of bird flu caused by avian influenza A (H5 ... Currently, no avian influenza A viruses, including avian influenza A(H5N1), have gained the ability to spread easily and sustainably ...

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