The National Vector Borne Disease Control Programme (NVBDCP) uses the Annual Parasite Incidence (API) to classify malaria endemicity for resource allocation. An API of 2 per 1000 population per year places a district in which category?

• A Low risk (API <1)
• B Medium risk (API 1–<2)
• C Hyper-endemic (API ≥5)
• D High risk (API ≥2) ✓

Explanation

NVBDCP stratifies districts as: low risk (API <1), medium risk (API 1–<2), and high risk (API ≥2). A district with API = 2 falls at the high-risk threshold and receives priority vector control interventions, indoor residual spraying, and drug distribution. Hyper-endemic is not the formal NVBDCP category term; the programme uses low/medium/high for operational planning. This stratification drives allocation of Long-Lasting Insecticidal Nets (LLINs) and IRS coverage.

Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.

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