## Understanding NVBDCP Vector Control Strategies **Key Point:** The NVBDCP emphasizes an integrated, multipronged approach to vector-borne disease control, with larval source reduction as the PRIMARY strategy, not chemical insecticides for adult vectors. ### Correct Statements (Options 0, 2, 3) | Statement | Accuracy | Details | |-----------|----------|----------| | Malaria surveillance via IDSS | ✓ Correct | Weekly reporting of confirmed malaria cases through IDSS is standard practice in India | | Filaria elimination via MDA | ✓ Correct | Annual or biannual MDA with DEC + albendazole is the cornerstone of lymphatic filariasis elimination in India | | IRS with pyrethroids for malaria | ✓ Correct | IRS is recommended in high-transmission areas; pyrethroids are WHO-approved and widely used | ### Why Option 1 Is Wrong **High-Yield:** The NVBDCP strategy prioritizes **larval source reduction** (environmental management, water tank cleaning, drain clearance) as the FIRST and most cost-effective measure. Chemical insecticides for adult vector control are a **supplementary** tool, not the primary approach. **Clinical Pearl:** Dengue control in India emphasizes community participation in source reduction (removing stagnant water) because: - *Aedes aegypti* breeds in clean, stagnant water in and around human habitats - Larval control is more sustainable and reduces insecticide resistance - Chemical spraying alone without source reduction has poor efficacy **Warning:** A common misconception is that chemical vector control (fogging, spraying) is the mainstay of dengue control. In reality, it is a **reactive measure** used during outbreaks; **proactive larval source reduction** is the foundation of the NVBDCP strategy. [cite:Park 26e Ch 20]
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