Efficacy of long-lasting insecticidal nets with declining physical and chemical integrity on Aedes aegypti (diptera : culicidae)

Fitting long-lasting insecticidal nets (LLIN) as screens on doors and windows has a significant impact on indoor adult Aedes aegypti, with entomological reductions measured in a previous study being significant for up to two years post-installation, even in the presence of pyrethroid-resistant Aedes populations. The study used bioassays (0, 6, and 12 months), which confirmed that LLIN residual activity decreased over time. However, the study demonstrates that the remaining chemical effect after field conditions still contributes to killing/repelling mosquitoes. LLIN screening from the neighborhood Juan Pablo II in Merida (Yucatan State, Mexico) were randomly selected. Merida is highly endemic for dengue and other Aedes-borne viruses