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

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 ...

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 ...

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

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

Medscape Medical News spoke with the CDC expert on the current H5N1 situation in the United States and ongoing surveillance ...

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

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 ...

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