Which of the following is a reliable indicator that a village is at high risk for a malaria outbreak, used under NVBDCP surveillance?
- A Annual Parasite Incidence (API) > 2 per 1000 population ✓
- B Annual Blood Examination Rate (ABER) < 10%
- C Slide Positivity Rate (SPR) > 50%
- D Parasite Rate (PR) = 0 in blood smears
Correct answer: A. Annual Parasite Incidence (API) > 2 per 1000 population
Explanation
Annual Parasite Incidence (API) > 2 per 1000 population designates a high-endemic area under NVBDCP and triggers intensified intervention (enhanced surveillance, IRS, bednet distribution). ABER should be at least 10% (not less) to ensure adequate surveillance. SPR > 50% would indicate extraordinarily high endemicity but API is the standard threshold indicator used in programme planning.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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