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[q] ……. is the rate at which new events occur in a population and should not include old cases or dead cases in the denominator?

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[Qq]Mnemonic: Incidence is the rate at which new cases coming in.

[q] …… is the cumulative incidence of infection in a group of people observed over a period of time during an epidemic, usually in relation to foodborne illness?

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[q] ……. is the rate at which All persons who experience an event in a population (old and new cases) and should not include dead cases in the denominator?

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[q] …… is prevalence during a particular “point in time“.

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[q] …… is prevalence during a specified period or “span of time”.

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[q] Prevalence ≈ incidence for ……..? Prevalence > incidence for …….?

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[q] How do prevalence and incidence change if an effective prevention, such as a vaccine (primary prevention), is discovered?

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