Incidence refers to the number of people affected at a given time in a particular area.
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Incidence refers to the frequency with which something, such as a disease or crime appears in a particular population or area. In disease epidemiology, the incidence is the number of newly diagnosed cases during a specific time period. The incidence is distinct from the prevalence which refers to the number of cases alive on a certain date.
Incidence figures allow authorities to determine whether the rate of new cases is stable or changing from one time period to the next.
List of books: Incidence