As well as the now-familiar HPAI H5N1 clade 2.3.4.4b Eurasian lineage-goose/Guangdong virus, a second virus serotype was detected at the farm. This was an H5N9 virus belonging to the same clade, and ...

The World Organization for Animal Health confirmed the detection, stating, “Highly pathogenic avian influenza H5N9, Eurasian lineage goose/Guangdong clade 2.3.4.4b and HPAI H5N1 clade 2.3.4.4b were ...

No evidence was found of the highly pathogenic H5N1 strain, which caused mortality in parts of Asia, Europe and Africa. There was no evidence that this strain occurred in North American wild birds.

The United States has confirmed its first outbreak of H5N9 (Eurasian lineage goose/Guangdong clade 2.3.4.4b) avian influenza in poultry, specifically on a duck farm located in California. U.S.

Researchers have found that acidification can kill H5N1 in waste milk, providing dairy farmers an affordable, easy-to-use alternative to pasteurization. Pasteurization is the only widely ...

The H5N1 virus is responsible for a worldwide avian flu pandemic in chickens. The virus has been determined to be a subtype of the influenza A virus and was first observed in China in 1996. Since ...

Cows in Nevada have been infected with a strain of H5N1 bird flu different from the strain detected in all other herds to this point in the ongoing dairy outbreak. It's the same strain that killed ...

Both H5N9 and the more common H5N1 strains were found. The USDA is conducting investigations and enhanced surveillance, highlighting H5N1's higher human risk compared to H5N9, which is rarer and ...