The strain bombarding the US right now, Eurasian H5N1, is considered highly pathogenic. It infects birds' respiratory and gastrointestinal tracts and can quickly tear through an entire flock.

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 ...

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.

The finding may not seem surprising, given the sweeping and ongoing outbreak of H5N1 among dairy farms in the US, which has reached 968 herds in 16 states and led to infections in 41 dairy workers.

A woman in Wyoming has been hospitalized with H5N1 bird flu Health officials say she was likely infected via handling sick birds in a backyard flock The woman is “an older adult” with “other ...

Pasteurization is the only widely recognized method of killing H5N1, the virus that causes bird flu, in milk. However, pasteurization can be expensive and fewer than 50% of large dairy farms ...

H5N1 Virus Outbreak News: The Centers for Disease Control and Prevention (CDC) has issued an emergency warning for the H5N1 avian influenza virus, also known as bird flu. The virus, which has ...