Question

Which of the following is/are used as operational indicators in antileprosy activity?

• A. Incidence
• B. Prevalence rate
• C. Case detection rate
• D. All of the above

Hint:

Leprosy control is judged using more than one type of rate together.

Answer 1

The Correct Option is D

Step 1: Note the source defect.
The original paper's printed options for this question were garbled, apparently mixed up with numbers from a nearby question. The options used here are the recognised operational indicators for leprosy control, matched to the marked answer.

Step 2: List what leprosy programmes actually track.
A leprosy elimination programme is judged by prevalence rate, which counts existing active cases, by case detection rate, which shows how fast new patients are found, and by incidence, which reflects fresh transmission in the community.

Step 3: See why one indicator is not enough.
Prevalence alone can look low even while new infections keep happening, so incidence and detection rate are tracked alongside it to get a full and honest picture of programme performance.

Step 4: Conclude.
Because each of the three measures adds separate useful information, all of them together are used as operational indicators.