As flu cases rise across the country, here is everything to know about testing yourself for the illness at home.

The flu is one of the most common and contagious diseases — it causes up to 41 million illnesses, 710,000 hospitalizations and 52,000 deaths each year in the US, according to the Centers for Disease ...

As millions of Americans hit the road or take to the skies for the holidays, another seasonal traveler is picking up speed: influenza.