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 ...

Feeling feverish and experiencing chills are signs of your body fighting ... which is more than twice the rate of adults ...

Severe flu infections can lead to a range of deadly complications, especially in people whose immune systems are compromised by age or disease.

When you get the classic signs of a flu or cold—like a runny nose ... although some people may have more severe symptoms. For healthy adults, RSV often feels like a run-of-the-mill cold ...

Hospitalized adults ages 18 to 49 were the least likely to receive seasonal flu vaccines. In 2014-15 ... "We wear helmets, we ...

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 ...