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

Amid a severe flu season, the CDC ends its universal flu shot recommendation for kids. Experts explain why this is dangerous ...

Flu season in the U.S. is particularly bad this year, and a new branch of the flu family tree may be to blame.

A new strain called Influenza A(H3N2) subclade K started in Europe. Here are the new flu strain symptoms.

The surge in cases arrives as four factors threaten to make the illness more severe than the usual, according to doctors.

Indiana is seeing "very high" rates of influenza activity in emergency rooms, urgent care centers and primary care offices ...

According to Idaho Department of Health and Welfare (IDHW) data, the predominant strain in Idaho is influenza A, with south ...