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Volume 20, Number 10—October 2014

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 RansonComments to Author 
Author affiliations: Liverpool School of Tropical Medicine, Liverpool, UK (K.H. Toé, C.M. Jones, H.M. Ismail, H. Ranson); Centre National de Recherche et de la Formation sur Paludisme, Ouagadougou, Burkina Faso (K.H. Toé, S. N’Fale); Institut de Recherche en Sciences de la Santé/Centre Muraz, Bobo-Dioulasso, Burkina Faso (R.K. Dabiré)

Main Article

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.

Main Article

Page created: September 12, 2014
Page updated: September 12, 2014
Page reviewed: September 12, 2014
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