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

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

On the same day that the first severe case of the avian virus in the U.S. was disclosed in Louisiana, halfway across the ...

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

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

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

California Gov. Gavin Newsom declared a public health emergency on Wednesday as bird flu continues to spread among the ...

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

Louisiana reported a person hospitalized with a severe case of H5N1, and the USDA has begun bulk milk testing ...

California declared a state of emergency after dozens of cases were reported there since April. But the CDC says the risk to ...