An epidemic that arises from horizontal transmission and where the of cases slowly rises and then falls is said to be of what type

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A propagated epidemic is one where the disease is transmitted from person to person and the number of cases slowly rises and then falls as the susceptible population becomes immune or the transmission is controlled. Common-source outbreaks involve a large number of people becoming sick at once after exposure to a common source of the disease. Sporadic cases occur infrequently and are not part of an ongoing epidemic. Pandemics involve a global epidemic spreading across multiple continents.

An Epidemic That Arises from Horizontal Transmission and Where the of Cases