Here's what you need to know about this season's H3N2 flu symptoms, treatment, when to go to the hospital and whether to get ...

Flu cases and hospitalizations are surging, already breaking last season's records. Here's where activity is highest, what ...

This year, the most prevalent variant is subclade K, which is a subtype of influenza H3N2. Subclade K was first detected in ...

Flu season is in full swing, with the U.S. seeing its highest rates in 25 years. Here's what you can do to prevent the spread ...

Flu season arrived fast and fierce this winter, driven by a sharp spike in influenza A cases around the holidays, according to the University of Rochester Medical Center. Doctors say the surge came ...

While it is possible to be infected after vaccination, the data strongly points toward protection. Simply stated, vaccinated ...

TWO OF THE FOUR CHILDREN WHO HAVE DIED FROM THE FLU ARE FROM HERE IN THE CITY OF BOSTON. AND CITY HEALTH OFFICIALS SAY TWO OF ...