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

With data showing a significant rise in flu cases nationwide, medical experts are describing it as the worst flu season since ...

Flu A and flu B are two different strains of influenza, explains Thomas Russo, M.D., professor and chief of infectious ...

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