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 ...

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 ...

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

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

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

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.

A strain of bird flu never seen before in the United States has been detected among poultry at a California farm. The virus, called highly pathogenic H5N9, is a type of avian influenza, otherwise ...