Under the National Vector Borne Disease Control Programme (NVBDCP), which parameter defines 'API' (Annual Parasite Incidence) in malaria surveillance?

• A Number of confirmed malaria cases per 1000 population per year ✓
• B Number of positive blood smears per 1000 population per year
• C Number of deaths due to malaria per 100,000 population per year
• D Number of blood slides examined per 1000 population per year

Explanation

Annual Parasite Incidence (API) = Total confirmed malaria cases (slide positive + RDT positive) per 1000 population per year. It is the primary indicator used to classify malaria endemicity and trigger interventions under NVBDCP. An API >2 classifies an area as high-transmission. Annual Blood Examination Rate (ABER) = slides examined per 100 population, which is a different indicator of surveillance intensity.

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

High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP

Written and medically reviewed by the StethoPrep medical team.