History of Spatial Repellents
Since the 1950's, various studies have been conducted to discover, evaluate and demonstrate the impact of spatial repellents on mosquito behavior and human health:
- Reduction of mosquito entry into houses;
- Screening of candidate compounds and product platforms;
- Decrease in malaria infections of spatial repellent users.
The most successful malaria control chemical to date that exhibits spatial repellency is DDT. Vector mosquitoes that are not directly killed by DDT are repelled and obliged to feed and rest outdoors, which contributes to effective disease-transmission control (World Health Organization 2011).