Bird flu virus has swept through farms across the nation’s largest dairy producing state. All human cases had been mild - ...

The virus in the first severe human bird flu case in the U.S. was found to have mutated. Newsweek's live blog is closed.

California officials have declared a state of emergency over the spread of bird flu, which is tearing through dairy cows in ...

Gov. Gavin Newsom declared a state of emergency on Wed. in response to the bird flu outbreak affecting dairy herds. Find out more about the rising cases, its symptoms, and other details below.

Millions of egg-laying flocks in California have been lost to the bird flu this year. It comes as the cost of eggs rose in ...

Federal authorities say it is likely being carried from farm to farm on objects like farm equipment or clothing that has ...

A new mutation and the first severe case of H5N1 bird flu discovered in a human in Louisiana has raised concern among some ...

There are 61 confirmed human cases of bird flu in people in the U.S., according to the Centers for Disease Control and Prevention. More than half of the human cases are in California. Bird flu is a ...

The bird flu outbreak has spread to all 50 states, these maps show. Here are the symptoms and what to do if you think you ...

California declared a state of emergency this week over the spread of bird flu in the state as the virus continues to be ...

Northwest Naturals is recalling a line of its pet food after authorities Oregon linked the death of a cat to a batch ...

California Gov. Gavin Newsom declared a state of emergency Wednesday to combat bird flu, which has spread to more than a quarter of all the state's dairies in the last month and infected 34 state ...