In January, a new strain of bird flu called H5N9 was determined to be the source of infection of a commercial duck farm in California. While that new strain was not seen as more infectious or ...

File photo of ducks on a farm at Gironde in southwestern France. (Esperanza33/iStock/Getty Images) The United States has reported its first outbreak of H5N9 bird flu ...

In January, a new strain of bird flu called H5N9 was determined to be the source of infection of a commercial duck farm in California. While that new strain is not more infectious or dangerous to ...

Earlier this week, the United States reported its first outbreak of H5N9 bird flu in poultry on a duck farm in California. The strain that has caused most damage in recent years has been H5N1. H5N9 is ...

Bird flu infections have been rare among people, but the pathogen is evolving, which has scientists worried about a possible ...

Avian flu strains tend to only affect birds, but the current outbreak has spread to cattle and – in rare cases – people. The ...

H5N1 bird flu has now crossed into U.S. dairy cattle for the first time, and alarmingly, it did so through just one spillover ...

As spring weather sets in, fears of a bird flu pandemic have not materialized, and there is less cause for worry than there ...

A vaccine under development has demonstrated complete protection in mice against a deadly variant of the virus that causes bird flu. The work focuses on the H5N1 variant known as 2.3.4.4b, which has ...

Critics argue that the cuts will hamper the FDA's ability to respond to animal disease outbreaks, including bird flu, and protect public health. The Trump administration has fired Food and Drug ...