Which statement about Aedes aegypti, the principal dengue vector, is correct?
- A It prefers clean stored water in domestic containers for breeding ✓
- B It bites predominantly during evening hours after sunset
- C It breeds in polluted stagnant drains and sewers
- D Its larvae survive prolonged desiccation of eggs for up to one year
Correct answer: A. It prefers clean stored water in domestic containers for breeding
Explanation
Aedes aegypti is a domestic container breeder that lays eggs in clean stored water such as overhead tanks, coolers, flower vases and tyres close to human dwellings. It is a day biter with peak activity in early morning and late afternoon, ruling out option B, and it avoids grossly polluted water, ruling out option C. Its eggs can withstand drying but larval survival in dry conditions is not the described trait.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
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