But what kind of sickness do your symptoms point to? Here's a breakdown for COVID-19, flu and more — and why testing is so ...

Any sign of severe illness warrants medical attention, which is critical given how severe the flu can be. Certain signs and symptoms in adults warrant emergency help, such as: The flu is a viral ...

US health officials didn’t find signs of human-to-human bird flu spread after testing a group of people in Missouri with suspicious symptoms. Five health-care workers with potential symptoms who ...

Flu is a mild illness for some people. But for others, including older adults and those with chronic (long-lasting) health conditions, the flu can be very serious and even life-threatening.

Dying from any cause was high among older adults hospitalized for the flu, and that prevalence persisted up to 30 days after people were discharged. The study was published Monday in Clinical ...

adults in the United States are more likely to be hospitalized with flu, as well as less likely to be vaccinated against flu, according to a new CDC Vital Signs report. CDC is working to increase ...