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) refers to the number of new cases of a disease in a given time period, which directly affects prevalence.
- Duration (C) refers to how long individuals remain sick, which also impacts the prevalence of a disease.
- Communicable period (B) and mortality (D) do influence the disease spread, but they do not directly affect the prevalence as much as incidence and duration.