California officials warn of an increase in flu-related hospitalizations and confirm a second severe-flu-related death.

A particularly infectious subvariant of influenza is keeping emergency room numbers high and causing especially severe ...

Health and Human Services Secretary Robert F. Kennedy Jr. told USA TODAY he stopped taking annual flu shots because of ...

This year's flu season is shaping up to be particularly brutal. Here's what to know this week, including cases taking a ...

A ferocious surge of flu cases is linked in part to a variant that has not been dominant in the past few years — resulting in ...

The U.S. is facing its worst flu season in 25 years, according to the Centers for Disease Control and Prevention, which ...

A future ASF vaccination program must be accompanied by an accurate way to distinguish vaccinated animals from those ...

Lower egg prices have subdued public discussion about bird flu. But the virus is expected to devastate farms this winter.

Robert F. Kennedy, Jr.’s Centers for Disease Control and Prevention has slashed childhood vaccine recommendations in the ...