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 ...

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

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 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 ...

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.

H5N9 is “not commonly seen in poultry in general,” says Eman Anis, assistant professor at the University of Pennsylvania School of Veterinary Medicine. (Anis is part of a lab that conducts national ...

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

The Trump administration would do well to follow the lead of Maryland, which is taking decisive action to stop the spread of ...

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 ...

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