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

Colorado is in the midst of what could end up as the state’s worst flu season in at least 20 years.

A flu season that packed emergency rooms across Ventura County has brought 30 deaths so far, making it the county's second ...

Partial CDC data suggest that influenza deaths may have already reached as high as 2% of deaths for the week ending on Feb. 1, also surpassing COVID-19 mortality nationwide which was holding at around ...

Experts emphasize the importance of getting vaccinated against both influenza A and B strains to prevent serious health ...

Influenza A — a nasty flu strain that fueled the 2009 flu epidemic — has been landing Ohioans in the hospital since the beginning of the year. The second, less severe wave of flu-like illness ...

MARYLAND — Influenza rates are very high in Maryland as a second wave of seasonal flu is putting pressure on doctors’ offices and urgent care clinics nationwide, according to the latest data ...

A second powerful wave of influenza has washed over many parts of the country this winter, including Washington, where flu patients are filling hospital ERs and deaths have already surpassed last ...

Massachusetts residents are in the midst of what some public health officials are calling a “tsunami” of flu infections. Residents are reporting flu symptoms at higher rates than any winter ...

A second powerful wave of influenza has washed over many parts of the country this winter, including Washington, where flu patients are filling hospital ERs and deaths have already surpassed last ...