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

A particularly infectious subvariant of influenza is keeping emergency room numbers high and causing especially severe ...

A ferocious surge of flu cases is linked in part to a variant that has not been dominant in the past few years — resulting in ...

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

Ultimately, none of the healthy participants got sick, which could be due to the participants age (and natural immunity to ...

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

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

Health officials say it's not too late to get a flu shot as a severe strain fuels a surge in cases across Texas. The ...

Health experts say the U.S. flu season appears to be waning with two straight weeks of decline in measures of flu activity.

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