California public health officials cautioned more children are testing positive for the flu this season. Here are flu symptoms to watch for.

They can cause all sorts of unpleasant symptoms. Certain symptoms, like a sore throat or fatigue, are hallmarks of all three.

The FluMist vaccine triggers an immune response directly in nasal tissue in adults, researchers reported April 29 in the ...

Global experts urge to prepare for possible new pandemic as new H5N1 bird flu outbreak spreads to dairy animals, human infections. Here's what to know ...

In a video posted on social media, Hegseth said "the notion that a flu vaccine must be mandatory for every service member, ...