A Lady Health Worker visits a village where malaria is common. Which household measure should she emphasise to reduce mosquito-borne transmission at night?
Correct answer: A. Sleep under an insecticide-treated bed net
- A. Sleep under an insecticide-treated bed net
- B. Keep windows open throughout the night without screening
- C. Drink extra water before going to sleep
- D. Apply antibiotic ointment to exposed skin
Explanation
Insecticide-treated nets reduce contact with night-biting Anopheles mosquitoes and provide a major personal protection measure against malaria. Window opening without screens increases exposure, while fluids and antibiotic ointment do not prevent mosquito transmission.
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About Environmental Health and Sanitation
Environmental health examines how water, air, food, housing, waste, noise, chemicals and workplace conditions affect disease and well-being. Sanitation content includes safe water treatment and storage, sewage and solid-waste disposal, food hygiene, vector control and the distinction between personal cleanliness and broader public-health sanitation.
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