PLoS ONE (2013) 8 (9 - e74929)

Josiane Etang, Philippe Nwane, Michael Piameu, Blaise Manga, Daniel Souop and Parfait Awono-Ambene (2013)
Evaluation of new tools for malaria vector control in Cameroon: Focus on long lasting insecticidal nets
PLoS ONE 8 (9 - e74929)
Abstract:
Background
From 2006 to 2011, biological activity of insecticides for Indoor Residual Spraying (IRS), conventional treatment of nets (CTNs) or long lasting insecticidal nets (LLINs) was evaluated before their approval in Cameroon. The objective of the study was to select the best tools for universal malaria vector control coverage.
Methodology
Bioassays were performed using WHO cones and the Kisumu susceptible strain of Anopheles gambiae s.s.. Among tested products, residual activity and wash resistance of Alpha-cypermethrin LLINs (Interceptor) and CTNs (Fendona) were assessed during 5 months in the Ntougou neighborhood.
Principal Findings
All the 14 tested products were found effective (95–100% knockdown and mortality rates), although a significant decrease of efficacy was seen with lambda-cyhalothrinWP IRS, alpha-cypermethrin CTNs and LLINs (p< 0.05). However, the efficacy of Interceptor nets did not decrease during the 5 months evaluation, even after 25 washes (0.07<p< 0.9). Meanwhile Fendona SC nets displayed a drastic decrease of activity after 5 washes, odds ratio was 3.07 (1.0–8.59).
Conclusion
This study provided useful data for decision making and community education toward universal coverage of malaria vector control in Cameroon.
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Database assignments for author(s): Josiane Etang

Research topic(s) for pests/diseases/weeds:
control - general

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Pest and/or beneficial records:

Beneficial	Pest/Disease/Weed	Crop/Product	Country	Quarant.
	Anopheles gambiae		Cameroon