Four viruses are circulating in the U.S., sparking concerns of a possible “quademic." Here's what to know about risk factors ...

COVID-19, influenza, RSV, and norovirus—have created what experts are calling a "quad-demic" in the U.S. Here's what to know ...

In the throes of winter's yearly round of respiratory virus outbreaks, it pays to remember what Grandma told you.

According to the CDC, the number of people going to doctors with illnesses the flu, RSV and COVID is surging. Epidemiologist Katelyn Jetelina joins John Yang to discuss why this year’s sick season is ...

You, my friend, are what scientists call a "holobiont"- an organism made up of human cells and the multiplicity of ...

Groundbreaking research reveals potential link between cytomegalovirus (CMV) and Alzheimer's disease, offering new insights ...

There's also one big difference between the flu and COVID or a cold that can indicate which illness you have. Don't ignore it ...

Research reveals how herpes simplex virus-1 may contribute to Alzheimer’s disease, offering new insights into the disease’s ...

Another illness you should look out for is a gastrointestinal virus called norovirus. McComb said this virus can cause lots ...