Which statement correctly defines incidence and prevalence with an example?

Which statement correctly defines incidence and prevalence with an example?

• A. Prevalence is the number of new cases in a defined period; Incidence is the total number of existing cases at a point in time
• B. Incidence is the number of new cases; Prevalence is the total existing cases
• C. Incidence measures mortality; Prevalence measures recovery
• D. Both refer to hospital admissions only

Answer: (B)