The Annual Parasite Incidence (API) is used by NVBDCP to categorize malaria endemicity. A district with API ≥ 2 is classified as:
- A Low-risk district
- B High-risk district ✓
- C Moderate-risk district
- D Hypo-endemic district
Explanation
Under NVBDCP classification, API (number of confirmed malaria cases per 1,000 population per year) is used to stratify districts: API < 1 = low risk, API 1–2 = moderate risk, API > 2 = high risk. High-risk districts receive intensified vector control and case management resources. API ≥ 2 thus places a district in the high-risk category. 'Hypo-endemic' is a WHO/parasite rate classification, not the NVBDCP API-based system.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
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Written and medically reviewed by the StethoPrep medical team.