The Stegomyia index (House Index) measures the percentage of houses with Aedes aegypti larvae. A Stegomyia index above which level indicates risk of dengue outbreak?
- A 1%
- B 10% ✓
- C 5%
- D 20%
Correct answer: B. 10%
Explanation
The House Index (Stegomyia index) = (Number of houses with Aedes larvae or pupae / Houses inspected) × 100. An index above 10% is considered indicative of significant dengue outbreak risk and necessitates immediate vector control measures. The Breteau Index (number of positive containers per 100 houses inspected) is considered the most informative; a Breteau index >50 indicates high risk. The Container Index measures percentage of water-filled containers with larvae.
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.