Some viruses mutate more rapidly than others. Learn more about why that is and what that means for your health.

Germany’s strange obsession with opening windows—even in freezing weather—isn’t just cultural tradition. It’s a decades-old ...

Cold and flu season typically happen during the fall and winter. Though it comes around every year, there's still a lot of confusion about viruses, vaccines and how to avoid getting sick. Experts and ...

The first reports of coronavirus — a group of viruses that includes COVID-19 and other diseases — go back to the 1930s.