Add Yahoo as a preferred source to see more of our stories on Google. But because the two viruses share many symptoms, it’s difficult to tell them apart. When a sniffle seems to progress further than ...

An upper respiratory infection is an illness that can cause nasal congestion, runny nose, sore throat, and cough. It can also cause a fever for the first few days. Upper respiratory infections are ...

Haupt is a health and wellness editor at TIME. Achoo Haupt is a health and wellness editor at TIME. The millions of people who suffer from seasonal allergies each year are too familiar with symptoms ...

If you get sick with a cold during the summer, it might catch you by surprise. It turns out those rays of sunshine can't protect you from the pesky viruses that cause the common cold. And while it's ...