California Department of Food and Agriculture (CDFA) this week confirmed seven new outbreaks of the highly pathogenic bird ...

A second health worker who cared for a person hospitalized in Missouri with H5N1 bird flu developed mild respiratory symptoms ...

Missouri healthcare worker who had contact with a hospitalized patient infected with bird flu developed mild respiratory ...

A third close contact of a patient in Missouri who was hospitalized with H5N1 bird flu has reported that they also ...

An extensive look at wastewater samples taken across the United States from May to July found traces of the H5N1 bird flu ...

An extensive look at wastewater samples taken across the United States from May to July found traces of the H5N1 bi ...

Bird flu has been spreading in dairy cows in the US—and the scale is likely to be far worse than it looks. In addition, 14 ...

Avian flu in dairy cows could stick around on US farms forever, and is raising the risk of outbreaks in mammals—including ...

Mysterious US bird flu case in person without any known contact with an infected animal raises spectre of human-to-human ...

Several labs will work with federal health authorities to develop a test for avian influenza, as the number of human cases ...

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

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