Cold and flu season can be especially challenging for families, as children are often exposed to multiple illnesses in a ...

Learn more about seasonal flu, including where to get a flu vaccine and how to treat seasonal flu.

The United States is facing one of its most severe flu seasons in decades, data show. Infections and hospitalizations are surging, driven by a new mutated influenza A variant, H3N2 "subclade K." ...

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

How long are you contagious with the flu? Experts say you can spread the virus for five to seven days after symptoms start, ...

Flu cases and hospitalizations are surging, already breaking last season's records. Here's where activity is highest, what symptoms to watch for and how to protect yourself.

Two more children had to be hospitalized in the Intensive Care Unit (ICU) in recent days due to extremely severe flu symptoms ...

Respiratory viruses are usually most active from October through March, health officials say.