Table 3 Determination of deltamethrin and PBO content on mosquito nets in the three experimental hut trials.
Country | Treatment | Target dose* | Deltamethrin/PBO content (g/kg) | Loss of active ingredient (%) | |
|---|---|---|---|---|---|
g/kg (IC95) | Before washing and testing | After testing | g/kg (IC95) | ||
Malanville (Benin) | Untreated net | 0 | <0.01 | <0.01 | |
Permanet 2.0 | 1.8 [1.35-2.25] | 2.09 | 1.74 | 17% | |
Permanet 2.0 20× | 1.8 [1.35-2.25] | 2.41 | 0.99 | 59% | |
Permanet 3.0 | 2.8 [2.1-3.5] | 2.61 | 2.32 | 11% | |
Permanet 3.0 Roof | 4 [3-5] | 3.69 | 3.00 | 19% | |
Permanet 3.0 20× | 2.8 [2.1-3.5] | 2.58 | 0.53 | 79% | |
Permanet 3.0 roof 20× | 4 [3-5] | 3.69 | 3.16 | 14% | |
CTN exhausted | 0.8 [0.6-1.0] | 0.59 | 0.09 | 85% | |
PBO Permanet 3.0 | 25 [18.75-31.25] | 20.8 | 23.1 | +11% | |
PBO Permanet 3.0 20× | 26 [18.75-31.25] | 20.7 | 12.4 | 40% | |
Pitoa (Cameroon) | Untreated net | 0 | <0.01 | <0.01 | |
Permanet 2.0 | 1.8 [1.35-2.25] | 2.53 | 2.51 | 1% | |
Permanet 2.0 20× | 1.8 [1.35-2.25] | 2.65 | 0.41 | 85% | |
Permanet 3.0 | 2.8 [2.1-3.5] | 2.44 | 2.50 | -3% | |
Permanet 3.0 Roof | 4 [3-5] | 3.21 | 3.22 | 0% | |
Permanet 3.0 20× | 2.8 [2.1-3.5] | 2.48 | 0.33 | 87% | |
Permanet 3.0 roof 20× | 4 [3-5] | 3.38 | 2.57 | 24% | |
CTN exhausted | 0.8 [0.6-1.0] | 0.88 | 0.08 | 91% | |
PBO Permanet 3.0 | 25 [18.75-31.25] | 26.0 | 29.8 | +15% | |
PBO Permanet 3.0 20× | 26 [18.75-31.25] | 28.0 | 17.7 | 37% | |
Vallée du kou (Burkina Faso) | Untreated net | 0 | <0.01 | <0.01 | |
Permanet 2.0 | 1.4 [1.05-1.75] | 1.31 | 1.32 | -1% | |
Permanet 2.0 20× | 1.4 [1.05-1.75] | 1.30 | 0.27 | 79% | |
Permanet 3.0 | 2.8 [2.1-3.5] | 2.89 | 2.94 | +2% | |
Permanet 3.0 Roof | 4 [3-5] | 4.33 | 4.07 | 6% | |
Permanet 3.0 20× | 2.8 [2.1-3.5] | 3.10 | 0.90 | 71% | |
Permanet 3.0 roof 20× | 4 [3-5] | 4.18 | 3.36 | 20% | |
CTN exhausted | 0.8 [0.6-1.0] | 0.72 | 0.11 | 85% | |
PBO Permanet 3.0 | 25 [18.75-31.25] | 23.1 | 20.4 | 12% | |
PBO Permanet 3.0 20× | 26 [18.75-31.25] | 22.9 | 15.1 | 34% | |