Question

Increase in Prevalence of a disease depends on: A. Incidence of disease B. Communicable period of disease C. Increased Duration of disease/illness D. Increased mortality due to the disease

• A. A and D only
• B. A and C only
• C. A and B only
• D. C and D only

Hint:

Prevalence is a function of both the rate of new cases (incidence) and how long people stay sick (duration).

Answer 1

The Correct Option is B

Step 1: Understand the factors affecting disease prevalence.

- Incidence (A), the number of new cases in a time period, directly impacts prevalence.
- Duration (C), the length of time individuals are sick, also affects prevalence.
- While communicable period (B) and mortality (D) influence disease spread, incidence and duration have a greater direct impact on prevalence.