Volume 20, Number 10—October 2014
Research
Increased Pyrethroid Resistance in Malaria Vectors and Decreased Bed Net Effectiveness, Burkina Faso
Kobié H. Toé, Christopher M. Jones, Sagnon N’Fale, Hanafy M. Ismail, Roch K. Dabiré, and Hilary Ranson
Table 1
Characteristics of insecticide extracted from long-lasting insecticide–treated bed nets, Burkina Faso*
| Net type | Condition | No. tested | Active ingredient concentration, mg/m2 (SD) | Target concentration, mg/m2 | Mortality rate, %, for Anopheles gambiae Kisumu laboratory strain mosquitoes (95% CI)† |
|---|---|---|---|---|---|
| DawaPlus | Used | 3 | 0 | 80 | 52.43 (45.37–59.41) |
| DawaPlus | New | 2 | 1.31 (1.60) | 80 | 51.30 (41.80–60.73) |
| Interceptor | Used | 3 | 22.2 (18.56) | 200 | 48.48 (41.30–55.67) |
| Interceptor | New | 2 | 223.95 (43.58) | 200 | 97.65 (93.30–99.51) |
| PermaNet 2.0 | Used | 2 | 66.3 (1.82) | 55 | 100.00 (97.02–100.00) |
*Active ingredient concentration was determined by high-performance liquid chromatography. Mortality rate was determined after a 3-min exposure.
†Insecticide susceptible.
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