The frequency of new cases of a disease during a year is known as:

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Incidence rate is defined as the frequency of new cases of a disease during a specific time period, usually a year. Mortality refers to the number of deaths caused by a disease, while morbidity refers to the prevalence of a disease in a population. Prevalence rate is the proportion of individuals in a population who have a particular disease at a specific point in time or over a specified time period.

The Frequency of New Cases of a Disease During a Year