How soon will I get sick if I am exposed to the flu?

The time from when a person is exposed to flu virus to when symptoms begin is about one to four days, with an average of about two days

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1. What is Influenza (flu)?
2. What are the symptoms of the flu?
3. When is the flu season in the United States?
4. How does the flu spread?
5. Does the flu have complications?
6. How do I find out if I have the flu?
7. How soon will I get sick if I am exposed to the flu?
8. How long is a person with flu virus contagious?
9. How many people get sick or die from the flu every year?