Have the flu or know someone with it? Flu cases surge to highest levels in 15 years, CDC says
Influenza levels in the US are the highest they've been in 15 years amid winter weather and a second wave of the virus.
Influenza B: Symptoms to Watch for Explained
The winter flu season features two types of influenza. Here's what you need to know about them and how they differ.
Flu activity now highest in 15 years: See which states have it worst
Influenza cases continue to mount with the virus reaching activity levels in the U.S. not seen for the last 15 years, according to the Centers from Disease Control and Prevention.
Why is this year’s flu season so bad? Doctors weigh in on symptoms and prevention
Doctor's visits for flu symptoms are at a 15-year high. Why is this flu season so bad? Doctors discuss flu severity, symptoms and how to stay safe.