Cases of the flu continue to rise nationwide and now appear to be higher than they've been in at least three decades, ...

The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years. One indicator of flu ...

In a season unlike any other, the U.S. is facing a viral onslaught not seen in years. With flu cases soaring, the landscape ...

(NEXSTAR) – The flu is spreading far and wide across the U.S. – and influenza A is largely to blame. Of all the flu tests ...

Flu activity is at its highest level since 2009, forcing school closures and overwhelming hospitals across the U.S.

Influenza A is further divided into subtypes. You may have heard of H1N1 or H3N2 – those are the two dominant types of ...

The flu can also cause a general feeling of fatigue or malaise, Ray says, as well as gastrointestinal issues like diarrhea ...