What is an outbreak?

An outbreak is when there are more cases of a disease then expected in a given area, or among a specific group of people, over a certain period of time. A case of disease is considered part of an outbreak if it is identified as being related to other cases or has a common cause or exposure.

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1. What is E. coli 0157:H7?
2. What happens when a person is infected with E. coli?
3. How does E. coli spread?
4. How is an E. coli infection diagnosed?
5. What kind of testing is done?
6. What is an outbreak?
7. How is an E. coli infection treated?
8. What steps can a person take to prevent an E. coli infection?