Which of the following describes an epidemic?Multiple ChoiceThe disease moves between two different populations.There are more cases of the disease than expected for a certain area over a given period of time.The disease has never been seen before by scientists.
Question
Which of the following describes an epidemic?Multiple ChoiceThe disease moves between two different populations.There are more cases of the disease than expected for a certain area over a given period of time.The disease has never been seen before by scientists.
Solution
The description that best fits an epidemic is: "There are more cases of the disease than expected for a certain area over a given period of time."
An epidemic refers to an increase, often sudden, in the number of cases of a disease above what is normally expected in that population in that area. It can also refer to a single case of a disease that is not normally present in a community.
The other options do not accurately describe an epidemic. The movement of a disease between two different populations could describe the spread of a disease, but not necessarily an epidemic. And a disease never seen before by scientists would be a novel disease, not necessarily an epidemic unless it meets the criteria of more cases than expected in a certain area over a given period of time.
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