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 ...

The newly reported H5N9 strain was found Monday at a duck farm in Merced County, California, according to the World ...

H5N9 is a rare subtype of the influenza A virus that can cause highly pathogenic avian influenza (HPAI), also known as bird flu. It's a reassortment strain that originated from the H5N1, H7N9, and ...

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

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 ...

Health officials also detected a more common H5N1 strain of bird flu on the same farm which is located in Merced County, California. "This is the first confirmed case of HPAI H5N9 in poultry in ...

First U.S. detection of virulent H5N9 strain, at a California duck farm, draws scrutiny as evidence of genetic reassortment that could trigger human outbreaks.

New strain of bird flu detected in California as H5N9 detected on a duck farm in Merced County, California, David Murray ...

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

California. The H5N9 strain has been detected before in North America among wild birds over the past two years. The strain was even detected in turkeys in Wisconsin in the 1960s, the earliest ...

A California duck farm made headlines this week after the World Organization of Animal Health published a report by U.S. authorities that a strain of bird flu that scientists call H5N9 had been ...

Health officials also detected a more common H5N1 strain of bird flu on the same farm which is located in Merced County, California. "This is the first confirmed case of HPAI H5N9 in poultry in ...