Which behavioural characteristic of Aedes aegypti is most relevant when planning source reduction for dengue control in an Indian city?
- A Breeds preferentially in clean, stagnant water stored in man-made containers close to human dwellings ✓
- B Breeds mainly in sewage-polluted drains and cesspools
- C Feeds predominantly outdoors at night on livestock
- D Lays eggs only in running streams and forest pools
Correct answer: A. Breeds preferentially in clean, stagnant water stored in man-made containers close to human dwellings
Explanation
Aedes aegypti is strongly domestic: it breeds in clean water in artificial containers such as tyres, flower vases, coolers and storage drums around houses and bites humans indoors during daytime, so source reduction targets household water storage. Polluted drains favour Culex quinquefasciatus, and outdoor nocturnal zoophilic feeding describes many Anopheles species. This behaviour explains why personal protection with repellents and day clothing matters uniquely in dengue.
Reference: Park's Textbook of Preventive and Social Medicine, 27th ed.
High-yield for: NEET PGINI-CETNExTFMGEUSMLEPLABMRCP
Written and medically reviewed by the StethoPrep medical team.