The occurrence of cases of an illness, specific health-related behavior, or other health-related events clearly in excess of normal expectancy in a community or region is defined as a/an:

Explanation

An outbreak or epidemic is defined as the occurrence of cases of an illness, specific health-related behavior, or other health-related events clearly in excess of normal expectancy in a community or region. Endemic refers to the constant presence of a disease within a given geographic area or population group. Pandemic is an epidemic occurring worldwide, or over a very wide area, crossing international boundaries and usually affecting a large number of people. Hyperendemic refers to a disease that is persistently high in incidence.