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

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

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

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

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.

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

A patient in Louisiana was hospitalized after a recent exposure with the CDC issuing guidance to those most at-risk of infection.

The virus is passed from animals to people. While the current public health risk is low, people are encouraged to take ...

A voluntary recall was issued Tuesday for a brand of raw cat food distributed in Arizona after the testing was positive for ...

California declared an emergency over the H5N1 virus. Bird flu still represents a low risk to the general public, the U.S.

A Louisiana patient is critically ill with severe respiratory symptoms from H5N1 bird flu, marking the 61st U.S. human case ...