The patient was experiencing "flu-like symptoms" and had "health conditions that can make people more vulnerable to illness," ...

The flu is walloping every corner of Massachusetts in an unusual second surge of the season, with people reporting flu-like ...

Sonya Stokes, an emergency room physician in the San Francisco Bay Area, braces herself for a daily deluge of patients sick ...

The rate of Americans visiting doctors’ offices for flu-like illness is continuing to reach record levels, new CDC data ...

Anxieties are high as experts warn the avian flu outbreak could worsen in the spring, but egg prices are spurring more ...

Two Michigan children have died after being diagnosed with Influenza A (H1N1). Genesee and Wayne counties each had one ...

The U.S. winter virus season is in full force, and by one measure is the most intense in 15 years.

"It's probably the worst flu season we've had in over a decade, in terms of number of cases," one doctor said.

Flu activity continues to hit new peaks, spreading across the country, according to data from the Centers for Disease Control ...

Dr. Michael Reihart, with Penn State Health, also explained who's most at risk for severe illness and how effective this year's vaccine is.

State health leaders in Massachusetts are raising concerns about the flu, which is reaching rates that haven't been seen in years.