A patient in Missouri who was hospitalized after an infection with bird flu had the H5N1 strain of the virus, the US Centers ...

On Monday state officials announced they had completed testing on all 95 licensed farms in Massachusetts that have dairy ...

The H5N1 virus, initially restricted to Eurasia and Africa, has since spread to North and South America and even reached ...

San Diego County is now the fifth location in California to detect the bird flu, county officials announced Monday.

The Czech Republic has reported an outbreak of the highly pathogenic H5N1 strain of avian influenza, or bird flu, on a ...

San Diego County is now the fifth locality in the state to report the environmental detection of H5 influenza virus or "bird ...

With the approach of fall and cooler weather across the United States, officials say the risk posed by the H5N1 bird flu ...

The number of California dairy herds reported to have outbreaks of H5N1 bird flu has grown to eight.

A close contact of someone with bird flu became ill on the same day, the C.D.C. reported. But the second person was not ...

The Centers for Disease Control and Prevention has picked five lab partners to develop a test for avian influenza A (H5N1) — ...

A close contact of a Missouri resident identified as having a human case of the H5N1 avian flu also became sick around the ...

In a disclosure that can't eliminate the possibility that bird flu may have spread from one human to another for the first ...