The presence of highly pathogenic avian influenza, or H5N1 bird flu, has been confirmed after officials worked to quarantine ...

When, where and how the H5N1 bird flu virus may evolve and its capacity to spark a pandemic is hard to predict — in part, ...

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

Public health officials have just reported the first known “severe” case of bird flu in the United States. There are now 61 ...

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

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

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

H5N1 outbreaks have led to the losses of commercial flocks in Barron, Trempealeau, Washburn and other Wisconsin counties.