This latest outbreak is part of a broader epizootic that has swept across the United States, affecting not only poultry but ...

The progression of the species-jumping disease has been unprecedented, including the first-ever U.S. cases of infections in ...

The California duck farm's strain of H5N9 is different from those earlier cases because this time it is closely related to a ...

Among adults hospitalized with influenza, Tamiflu treatment on the day of hospital admission was associated with a reduced risk for disease progression.