Table 2.
Intensity of resistance to deltamethrin in An. gambiae s.l. from different villages in the study area prior to the study.
| Strain | Slope (SE) | LD 50 (95% CI) | LD 95 (95% CI) | RR50 |
|---|---|---|---|---|
| Kisumua | 1.3 (0.18) | 0.015 (0.009–0.022) | 0.261 (0.136–0.767) | – |
| Akanzakro | 1.7 (0.2) | 27.2 (20.3–35.2) | 250.1 (166.7–451.0) | 1873 |
| Kologonouan | 1.5 (0.1) | 21.9 (15.8–28.5) | 289.3 (190.0–534.4) | 1504 |
| Konzo | 1.6 (0.1) | 23.5 (19.1–28.3) | 237.4 (173.7–358.2) | 1617 |
| Kouakro | 1.7 (0.17) | 22.4 (17.3–28.0) | 213.5 (145.0–376.6) | 1542 |
| N’Guessan Pokoukro | 2.1 (0.2) | 33.7 (25.7–43.2) | 207.0 (139.6–377.6) | 2314 |
| Saoundi | 1.7 (0.1) | 35.0 (28.9–41.9) | 322.4 (237.8–477.3) | 2405 |
| Seoule | 1.7 (0.1) | 21.0 (17.2–25.0) | 183.0 (139.1–261.3) | 1441 |
| Sessenouan | 1.4 (0.1) | 27.4 (20.8–34.8) | 390.3 (256.3–708.0) | 1883 |
LD lethal doses expressed in μg/mL; RR50 resistance ratio, calculated by dividing the LD50 of the field mosquito population by that of the susceptible reference strain.
aSusceptible reference strain.