In assessing Aedes aegypti larval density for dengue control operations, the 'Container Index' is defined as:

• A Percentage of water-holding containers inspected that are positive for Aedes larvae or pupae ✓
• B Number of Aedes-positive containers per house inspected
• C Number of larvae per dip from positive containers
• D Percentage of houses inspected that have at least one positive container

Explanation

Aedes larval indices: (1) House Index (HI) = % of houses positive for Aedes larvae or pupae; (2) Container Index (CI) = % of water-holding containers that are positive for Aedes larvae/pupae; (3) Breteau Index (BI) = number of positive containers per 100 houses inspected — BI is considered the most informative index for dengue risk assessment. Container Index = (Positive containers / All water-holding containers inspected) × 100. A CI > 5 generally indicates epidemic risk. Stegomyia indices guide vector control prioritization in outbreak response.

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.