What is influenza (the flu)?
![](https://bac-lac.wayback.archive-it.org/web/20061208032653im_/http://rdext/cms/ImageCache/7533ADE406D34F6B847B01750696CBD4/D55F6FCFF30A43338E257205E9EB9564/YE/yellowline450.jpg)
Every year, many people get sick with the flu. In Canada, people usually get the flu between November and April.
A virus causes the flu. There are different types of flu viruses. For example: Type A and Type B. These viruses are always changing. They are too small to see.
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![](/web/20061208032653im_/http://www.health.gov.ab.ca/influenza/influenza_inbed.gif) George is sick. He has the flu. |
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What is influenza (the flu)?
How does the flu spread?
Symptoms for adults
The flu can be serious
How to protect yourself and others from the flu
What to do when adults get the flu
Over-the-counter medicine can help
When to go to the doctor
Children and the flu
What is an influenza (flu) pandemic?
What to do if there is a pandemic
Bird flu in the news
The flu is different from a cold and the stomach flu
Health Link Alberta