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. U.S. authorities also detected the more common H5N1 strain on the same farm in Merced County,

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

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

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

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 ...

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.

The U.S. alone lost more than 40 million laying hens to bird flu in 2024, said Emily Metz, president and CEO of the Chicago-based American Egg Board.

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 CDC has confirmed a new human H5N1 bird flu case in California, raising the US total to 67. Most cases involve farm workers exposed to sick animals. The CDC urges rapid testing, antiviral treatments,

Consumers can blame bird flu for the disruptions in the egg market, experts say. Close to 40 million egg-laying hens that are part of the commercial egg supply chain died as a result of the influenza strain and also because of fires.