An outbreak of a gastrointestinal illness from a food-borne pathogen is an example of a(n):

a. Attack rate
b. Point epidemic
c. Secular trend
d. Event-related cluster


B
One temporal and spatial pattern of disease distribution is the point epidemic. A point epidemic is most clearly seen when the frequency of cases is plotted against time. The sharp peak charac-teristic of such graphs indicates a concentration of cases in some short interval of time.

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