Influenza is an acute infection caused by any of 3 types of viruses (A, B, or C). Type A strains are associated with the most severe disease. Many people confuse influenza or flu with the common cold.
| Printer-Friendly Format | | | Email to a Friend |
Find the secrets to longer life.
Medicine Cabinet Makeover
When you’re sick, you don't want to go shopping for medicine. Find out how you can be prepared.See more WebMD Videos »
|