12. Vector density: IRS versus EVM.
| Trial ID | Intervention 1/Intervention 2 | Main vector | Measure (method) | Pre‐intervention | Post‐intervention | P value | ||
| IRS | EVM | IRS | EVM | |||||
| Chowdhury 2011 BGD |
IRS with 20 mg/per m² deltamethrin. versus EVM Filling cracks and crevices in the walls and floors of human dwellings, detached kitchens, cattle sheds, and other structures. Promotion of cleaning up debris from the environment using household incentives. |
P. argentipes | Total sandflies (monthly collections from 40 houses using light traps). |
633 (October 2006) |
662 (October 2006) |
644 (October 2007) |
598 (October 2007) |
Not reported |
| Joshi 2009 ASIA |
IRS Bangladesh: 20 mg/m² deltamethrin. India: 1 g/m² 5% DDT Nepal: 0.025 g/m² alpha‐cypermethrin. versus EVM Trained community mobilizers met with each family to discuss the typical resting and breeding sites in and around the houses and the appropriate ways to reducing them. In Nepal and India wall plastering with lime/mud mixture was promoted, the lime being provided free of charge to the households. In Bangladesh plastering was done with mud only. |
P. argentipes | Mean number of sandflies per per house (light trap) per night at all sites pooled in Nepal, Bangladesh and India. | 12.32 (date not stated) |
13.21 (date not stated) |
6.14 (5 months post intervention) |
10.39 (5 months post intervention) |
Not reported |
Abbreviations: IRS = indoor residual spraying; EVM = environmental modification.