A new strain of bird flu, H5N9, has been detected for the first time in the United States, raising concerns about how it continues to spread.

A newly identified strain of bird flu, H5N9, discovered at a California duck farm, has prompted concerns about the possibility of a larger outbreak, The Washington Post reported Jan. 29. Health ...

Bird flu is now believed to be widespread in Massachusetts and is likely present even in places where there has not been a ...

A rare strain of bird flu, H5N9, has been detected on a duck farm in California’s Merced County, marking the first confirmed case of this virus in U.S. poultry. The World Organization for Animal ...

Reuters said that authorities also detected the more common H5N1 strain on the same farm in Merced County, California. Almost 119,000 birds on the farm had been killed by December 2, 2024. A recent ...

Highly pathogenic avian influenza H5N9 has been identified in U.S. poultry for the first time, after outbreak at a commercial ...

The newly reported H5N9 strain was found Monday at a duck farm in Merced County, California, according to the World Organization for Animal Health. The Paris-based organization that studies animal ...

A California duck farm has culled thousands of birds as the virus seems to be trading genetics with other viruses ...

US officials are investigating the appearance of a strain of bird flu identified in the US for the first time, a worrying ...

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

The California duck farm's strain of H5N9 is different from those earlier cases because this time it is closely related to a ...

Alarm Raised as First H5N9 Bird Flu Outbreak Strikes US Poultry Farms** The agricultural landscape faces a new threat as the United States reports its first outbreak of the H5N9 bird flu at a duck ...