Influenza (the "flu") is a highly contagious viral infection of the nose, throat and lungs. It ranks as one of the most severe illnesses of the winter season.
Frequently Asked Questions About the Flu

Reducing your risk of getting the flu
You may reduce the risk of getting the flu and other viral respiratory infections if you*:

• Wash your hands often, especially during winter months when the flu is most common.
• Keep your hands away from your nose, eyes, and mouth. Viruses are most likely to enter your body through these areas.
• Stop smoking. It irritates the lining of your nose, sinuses, and lungs, which may make you susceptible to complications of the flu.
• Eat a healthy and balanced diet.
• Get regular exercise.

*From our Healthwise KnowledgeBase
Read more about preventing the flu