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

Influenza cases continue to mount with the virus reaching activity levels in the U.S. not seen for the last 15 years, according to the Centers from Disease Control and Prevention.

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.

Outpatient health care visits for flu-like illnesses are at their highest levels in 15 years, according to data updated ...

While we often refer to it as "the flu," the influenza virus has several strains, with flu A and flu B considered the most ...

While we often refer to it as "the flu," the influenza virus has several strains, with flu A and flu B considered the most ...

U.S. medical services providers are seeing the greatest numbers of flu cases since the 2009-2010 flu season, the Centers for ...

Three teenagers are among 73 individuals who have died from the flu this season, according to San Diego County’s latest ...

“It’s important to note that the CDC estimates that the flu has resulted in between 100,000 and 710,000 hospitalizations and up to 51,000 deaths every year, especially older adults, young ...