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

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

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

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

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 declaration of a state of emergency in California over avian influenza comes within days of the first severe human case ...

the number of confirmed H5N1 cases in humans as of December 20 has shot up to 64 in the U.S., with 34 cases in California alone. Yet, despite H5N1’s high fatality of 52% since 2003, there have ...

less than a month after a child in California was diagnosed with the virus. On Friday, the CDC confirmed a person from Louisiana had avian influenza A virus, H5N1, after they were exposed to sick ...