Under NVBDCP, which insecticide is used for Indoor Residual Spraying (IRS) as part of the malaria elimination strategy, replacing DDT in most endemic states?
- A Deltamethrin or Alphacypermethrin (pyrethroids) ✓
- B Malathion
- C Permethrin
- D Temephos
Correct answer: A. Deltamethrin or Alphacypermethrin (pyrethroids)
Explanation
Following WHO's recommendation to phase out DDT, NVBDCP has shifted to synthetic pyrethroids (deltamethrin and alphacypermethrin) for IRS in most states. Malathion (organophosphate) is used where pyrethroid resistance is documented. Temephos is a larvicide used for breeding site treatment, not IRS. Permethrin is used for Long-Lasting Insecticidal Nets (LLINs).
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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