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 it is the first time this virus serotype has been detected in the U.S.

The United States has reported its first outbreak of H5N9 bird flu on a duck farm in California, according to the World Organization for Animal Health (WOAH) on Monday. H5N9 is a rare subtype of the influenza A virus that can cause highly pathogenic avian influenza (HPAI),

Although the virus has been detected at more than 700 California dairies, not a single non-dairy cow has tested positive, experts say.

Avian influenza is having a major impact on dairy cows and domestic poultry in California. There have been more than 700 dairy herds and 60 poultry flocks

The Trump administration has paused public communications from health agencies, causing concern for California's ability to respond to the avian flu outbreak.

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.

The highly pathogenic avian influenza, or bird flu, outbreak is the most obvious ... Law changes have led to egg price increases Some states, like California, are being hit especially hard by the egg crunch, and part of that is likely a result of state ...

Avian influenza has led to a shortage of eggs and wholesale prices that are through the roof. Consumers can expect to feel the pain for a while.

John Batchelor and I dive into the accelerating outbreak of avian flu across the U.S. and the hazard of raw milk.

The first human death caused by H5N1 in the U.S. was reported in Louisiana on Jan. 6. Here's what to know about bird flu.

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

There's been 66 confirmed cases of bird flu in humans in the U.S. with California having 37 reported cases, according to the Centers for Disease Control and Prevention (CDC). There is no evidence the virus is spread between humans, according to health officials.