Table 1.
Deltamethrin susceptibility status of the four strains of Aedes aegypti: laboratory strains (AND-Aedes aegypti and AND-Aedes aegypti-DL10) and wild-caught colonized strains (GVD-Delhi and SHD-Delhi) of Aedes aegypti after 24 h exposure to 0.05% deltamethrin-impregnated papers.
| Strains | LT50 (min.) | RR LT50 (min.) | LT90 (min.) | RR LT90 (min.) | % Mortality after 24 h |
|---|---|---|---|---|---|
| AND-Aedes aegypti | 4.43 | — | 8.85 | — | 100 |
| AND-Aedes aegypti-DL10 | 4.76 | 1.07 (S) | 9.98 | 1.12 (S) | 100 |
| Aedes aegypti (GVD-Delhi) | 8.78 | 1.98 (S) | 15.99 | 1.80 (S) | 100 |
| Aedes aegypti (SHD-Delhi) | 8.38 | 1.89 (S) | 14.91 | 1.68 (S) | 100 |
LT50 or 90: lethal time for killing 50% or 90% mosquitoes exposed; RR: resistance ratio; S: susceptible, based on the WHO protocol (WHO, 2022).