Do you know which foods amp up your protection against colds and flu the most? We asked top nutrition experts to reveal the ...

Unlike the common cold—which, although miserable, usually doesn't hurt anyone—influenza can be serious business. Here's what ...

You can test yourself from home for flu and COVID-19 with a quick swab. If your tests are negative, it’s likely that you have ...

Self-tests and over-the-counter remedies mean you don’t always need to see a doctor. Here's how to tell when you do.