The California duck farm's strain of H5N9 is different from those earlier cases because this time it is closely related to a newer variant of the H5N1 virus. That variant is called H5N1 D1.1, the USDA ...

H5N9 is “not commonly seen in poultry in general,” says Eman Anis, assistant professor at the University of Pennsylvania ...

H5N9 is a rare subtype of the influenza A virus that can cause highly pathogenic avian influenza (HPAI), also known as bird ...

The first U.S. H5N9 outbreak has raised concerns as scientists warn of evolving bird flu risks—here's what you need to know about the symptoms.

The woman had a backyard flock of chickens that got sick and died, a CDC spokesperson said Saturday. The state health ...

A new strain of H5N9 bird flu was detected at a commercial duck operation in California's Merced County. All the ducks were euthanized.

The virus, called highly pathogenic H5N9, is a type of avian influenza, otherwise known as "bird flu." This is not the same type of bird flu that's already been spreading on dairy cow and poultry ...

A new variant of the H5N1 bird flu — the same one that led to the death of a Louisiana man — has for first the first time been found in infected U.S. dairy cattle.

A recent bird flu outbreak at a California duck farm has raised concerns, with the highly pathogenic strain H5N9 discovered among sick birds. This incident, reported by U.S. authorities through ...

A new strain of bird flu has been detected on a duck farm in California. The World Organisation for Animal Health reported the outbreak of the new strain, H5N9, earlier this week.

And now, there’s been a reported outbreak in the U.S. of another strain of avian influenza, H5N9. This H5N9 outbreak occurred on a duck farm in Merced, California, and has been reported to the ...

The United States has reported its first outbreak of H5N9 bird flu in poultry on a duck farm in California, the World ...