Cases across the country had appeared to decline before new public health data showed upticks in infections.

All viral activity benchmarks have gone down, except for a slight increase in the death rate. Here's what to know about the state of the flu season.

Were you or a loved one sick over the holidays? Here's what to know about new influenza variant and how to stay healthy during flu season ...

Have you been sick since the new year started? You're not alone; here's what to know about new H3N2 flu strain and its symptoms ...

Ohio ranks among states with very high flu activity. Here's what to know about current case numbers, symptoms, and how to stay protected.

It is definitely still worth getting a vaccine. If H1N1 comes around, you can get infected with that one or even a second ...

A new flu strain is surging nationwide. Georgia reports double the hospitalizations from last year. Learn the symptoms and ...

A new form of the flu, which is highly contagious and aggressive, is sweeping the nation this season. A mutation of influenza A H3N2, called subclade K, has been detected as the culprit in rising ...

At least 100 people have died from the flu this season in Illinois, with 77 of those deaths in January.

Influenza is on the rise. Flu activity was "high" or "very high" in 32 states and jurisdictions, as of Dec. 30, according to ...

More people are reporting flu and asthma sickness in Palm Beach County during the cold spell.

Flu-related hospital admissions are up since December and the respiratory illness season typically extends through April.