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.

The United States has reported its first outbreak of H5N9 bird flu in poultry on a duck farm in California, the World Organization for Animal Health (WOAH) said on Monday. U.S. authorities also ...

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

according to the World Organisation for Animal Health (WOAH). Health officials also detected a more common H5N1 strain of bird flu on the same farm which is located in Merced County, California.

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

According to the WOAH report filed by the USDA ... “The case of H5N9 confirmed in backyard ducks at a facility in California was a reassortment of the H5N1 D1.1 virus that has been circulating ...

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

U.S. authorities also detected the more common H5N1 strain on the same farm in Merced County, California, they said in a report to Paris-based WOAH, adding that the almost 119,000 birds on the ...