The virus already has caused devastating effects in the state, which has seen the second-highest number of outbreaks in ...

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 ...

As bird flu ravages poultry farms across the country – including in South Dakota – fears are growing that the highly ...

As bird flu ravages poultry farms across the country — including in South Dakota — fears are growing that the highly ...

BRIDGEWATER — As bird flu ravages poultry farms across the country — including in South Dakota — fears are growing that the highly contagious avian influenza virus could mutate and begin to ...

Some 16 states had "very high" levels of the virus present in wastewater during the week of Christmas, an increase from the week before.