Stegomyia index (Container index) in dengue surveillance is calculated as:

• A (Number of positive containers / Number of houses inspected) × 100
• B (Number of Aedes larvae found / Total person-hours surveyed) × 100
• C (Number of positive containers / Total containers inspected) × 100 ✓
• D (Number of positive houses / Total houses inspected) × 100

Explanation

The Container Index (Stegomyia Index) = (Number of water-holding containers positive for Aedes larvae or pupae / Total number of containers inspected) × 100. It differs from the House Index [(positive houses/total houses inspected) × 100] and the Breteau Index [(positive containers per 100 houses inspected)]. The Container Index indicates the proportion of containers that harbour Aedes, which is useful for targeting source reduction.

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.