Asked by junior
Describe two effective means of preventing the spread of malaria.
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GPT-5 mini
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1) Long-lasting insecticidal nets (LLINs)
- What: Bed nets treated with a long‑lasting insecticide that people sleep under.
- How they work: They physically block mosquitoes and kill or repel those that land on the net, reducing bites at night when malaria vectors feed.
- Practical points: Require high household coverage and regular replacement (every 3–5 years depending on product). Very effective at lowering child mortality and transmission in endemic areas.
2) Indoor residual spraying (IRS)
- What: Periodic spraying of long‑lasting insecticide on interior walls and ceilings of homes.
- How it works: Mosquitoes that rest on sprayed surfaces after feeding absorb insecticide and die, reducing vector populations and transmission.
- Practical points: Needs high community coverage and reapplication every few months to maintain effect; insecticide choice should consider local resistance patterns.
Note: Combining vector control (LLINs + IRS) with prompt diagnosis and effective treatment of cases, plus targeted environmental management, yields the greatest reduction in malaria spread.
- What: Bed nets treated with a long‑lasting insecticide that people sleep under.
- How they work: They physically block mosquitoes and kill or repel those that land on the net, reducing bites at night when malaria vectors feed.
- Practical points: Require high household coverage and regular replacement (every 3–5 years depending on product). Very effective at lowering child mortality and transmission in endemic areas.
2) Indoor residual spraying (IRS)
- What: Periodic spraying of long‑lasting insecticide on interior walls and ceilings of homes.
- How it works: Mosquitoes that rest on sprayed surfaces after feeding absorb insecticide and die, reducing vector populations and transmission.
- Practical points: Needs high community coverage and reapplication every few months to maintain effect; insecticide choice should consider local resistance patterns.
Note: Combining vector control (LLINs + IRS) with prompt diagnosis and effective treatment of cases, plus targeted environmental management, yields the greatest reduction in malaria spread.
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