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

After Gov. Gavin Newsom last week declared an emergency stemming from bird flu’s spread in dairy herds, local public health ...

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

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

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 ...

The first severe case of H5N1 bird flu was confirmed in Louisiana. Here is a map of other states that have been affected.

Officials have discovered the virus in 645 dairy herds, more than in any other state so far. In a stark acknowledgment of the ...

Reports that cows have been infected despite farmers' preventive measures indicate there are multiple routes of transmission ...

California Governor Gavin Newsom has issued a state of emergency in response to a bird flu outbreak. California is in a state of emergency due to a recent bird flu outbreak. As residents grapple with ...

Los Angeles County health officials have identified three more cats with presumptive H5N1; the source of the virus has not ...

A brand of natural cat food sold is being pulled from store shelves in multiple states after reports that a cat in who ate ...

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