Table 5.
Knockdown times for 50 and 95% of the susceptible Kisumu Anopheles gambiae strain and the Teso North and Teso South F0Anopheles gambiae to permethrin, deltamethrin, and bendiocarb diagnostic concentrations.
| Susceptible Kisumu Asembo Anopheles gambiae strain | Teso North and South F0Anopheles gambiae samples | |||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Diagnostic concentrations | Clusters | n | KDT50 [CI] (min) | KDT95 [CI] (min) | Mortality after 60 min (%) | n | KDT50 [CI] (min) | KDT95 [CI] (min) | Mortality after 24 h (%) | KDT50 R |
| 0.75% permethrin | Kaliwa | 100 | 14.155 [6.207-20.372] | 32.462 [25.469-50.817] | 100 | 95 | 41.285 [38.579-44.369] | 103.363 [88.043-129.284] | 75 | 2.9 |
| Odioi | 100 | 17.658 [4.133-27.790] | 58.565 [34.896-1259.225] | 100 | 100 | 46.607 [36.379-71.682] | 189.492 [104.482-1062.44] | 57 | 2.6 | |
| Akiriamasit | 100 | 13.977 [3.707-21.112] | 61.544 [37.499-466.702] | 100 | 75 | 24.689 [19.390-30.196] | 66.066 [48.540-128.794] | 71 | 1.8 | |
| Kengatunyi | 100 | 8.189 [5.947-10.563] | 27.813 [21.837-39.676] | 100 | 100 | 36.397 [34.402-38.442] | 74.654 [67.294-85.557] | 86 | 4.4 | |
| Rwatama | 100 | 14.982 [12.625-17.192] | 35.886 [29.288-48.448] | 100 | 76 | 37.085 [34.536-39.788] | 84.719 [73.667-102.885] | 66 | 2.5 | |
| 0.05% deltamethrin | Kaliwa | 100 | 17.590 [15.962-19.036] | 26.432 [23.914-30.975] | 100 | 76 | 30.930 [23.644-41.566] | 86.182 [56.925-292.337] | 78 | 1.8 |
| Odioi | 100 | 5.780 [3.534-7.794] | 31.050 [25.978-39.834] | 100 | 78 | 31.757 [29.521-34.007] | 71.317 [63.207-83.777] | 66 | 5.5 | |
| Akiriamasit | 100 | 13.256 [4.132-19.714] | 62.378 [38.849-328.090] | 100 | 96 | 35.448 [30.809-40.298] | 70.829 [58.069-102.798] | 75 | 2.7 | |
| Kengatunyi | 100 | 2.698 [0.722-4.916] | 24.154 [18.974-32.751] | 100 | 71 | 22.204 [20.821-25.139] | 49.690 [46.172-52.962] | 86 | 8.2 | |
| Rwatama | 100 | 17.012 [15.200-19.304] | 50.773 [31.357-402.770] | 100 | 67 | 30.423 [27.859-33.198] | 80.692 [70.893-97.137] | 78 | 1.8 | |
| 0.1% bendiocarb | Odioi | 100 | 5.432 [0.679-10.006] | 51.612 [33.976-172.401] | 100 | 61 | 20.543 [18.570-23.086] | 58.895 [53.951-67.980] | 100 | 3.8 |
| Akiriamasit | 100 | 5.439 [0.258-10.444] | 39.386 [25.578-168.087] | 100 | 100 | 24.886 [17.223-31.783] | 48.181 [36.636-100.030] | 100 | 4.6 | |
n: sample size; CI: confidence interval at 50 and 95%; KDT50: knockdown times for 50% of exposed mosquitoes; KDT95: knockdown times for 95% of exposed mosquitoes; KDT50 R: ratio KDT50 Teso North and Teso South F0 female mosquito samples/KDT50 susceptible Kisumu Asembo Anopheles gambiae strain; min: time in minutes.