Influenza levels in the US are the highest they've been in 15 years amid winter weather and a second wave of the virus.

The worst flu season in years is swamping California, prompting a renewed surge in hospitalizations as officials warn the ...

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

Flu deaths have surpassed COVID-19 in California for the first time since the pandemic, with concerns over low vaccination rates and a likely severe flu season.

It’s not unusual historically to see high numbers of respiratory viruses floating around during this time frame,” a UNC ...

Low vaccination rates may be contributing to the spread of flu, but data suggests the number of cases so far this season is ...

Flu cases are surging across the country and here in the Philadelphia region, where doctors say cases could be growing ...

Testing results from patients indicate that two strains of seasonal flu that are causing most illnesses — a Type A H1N1 and a ...

Doctor's visits for flu symptoms are at a 15-year high. Why is this flu season so bad? Doctors discuss flu severity, symptoms and how to stay safe.

Flu cases soar across the US; Sacramento sees highest flu-related medical visits since 2009. Learn prevention tips and why vaccination rates matter.