An epidemic curve depicting a distribution of cases traceable to multiple sources of exposure is a

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A propagated epidemic curve shows a distribution of cases that spread through person-to-person transmission. It is usually associated with multiple sources of exposure as the disease spreads from one individual to another. A point source epidemic curve, on the other hand, depicts an outbreak where cases are exposed to a common source of infection at the same time. Case control and descriptive studies are research methods used to investigate the causes and characteristics of an outbreak.

An Epidemic Curve Depicting a Distribution of Cases Traceable to Multiple