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 ...

Tis the season for cooler temps, shorter days and cozy nights by the fire. Unfortunately, this time of year also marks the ...

After reporting was delayed due to the holidays, new CDC data shows the flu is spreading, with 33,000 people hospitalized ...

A new flu strain has been detected, with the variant dubbed influenza A subclade K. How severe is the strain and does the ...

California officials warn of an increase in flu-related hospitalizations and confirm a second severe-flu-related death.

Even as doctor visits and hospitalizations from the flu decreased, an additional 15 children died last week. Doctors caution ...

If you are not feeling well, stay home. Common flu symptoms include fever, body aches, headaches and a sore throat. And if ...

State health officials confirmed a second pediatric death associated with the flu this season. Here's what to know.

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

The spike in flu cases widely referred to in media reports as a "superflu" is largely driven by a newly identified subtype of ...