Wide-scale installation of insecticide-treated curtains confers high levels of protection against malaria transmission in a hyperendemic area of Burkina Faso

In a region of Sudanese savannah in Burkina Faso, insecticide-treated curtains were installed in 8 out of 16 zones, each covering an area of about 50 km 2. Longitudinal entomological monitoring using CDC light traps was performed in 4 villages (2 intervention, 2 control) over a period of 3 years (in...

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Published in:	Transactions of the Royal Society of Tropical Medicine and Hygiene Vol. 93; no. 5; pp. 473 - 479
Main Authors:	Cuzin-Ouattara, N., Van den Broek, A.H.A., Habluetzel, A., Diabaté, A., Sanogo-Ilboudo, E., Diallo, D.A., Cousens, S.N., Esposito, F.
Format:	Journal Article Conference Proceeding
Language:	English
Published:	Oxford Elsevier Ltd 01-09-1999 Royal Society of Tropical Medicine and Hygiene Elsevier
Subjects:	Animals Anopheles Apicomplexa - isolation & purification Biological and medical sciences Burkina Faso Burkina Faso - epidemiology Cross-Sectional Studies Culicidae - parasitology entomology Female Fundamental and applied biological sciences. Psychology Household Articles Humans Insect Vectors insecticide-treated materials Insecticides - administration & dosage malaria Malaria, Falciparum - prevention & control Male Medically important nuisances and vectors, pests of stored products and materials: population survey and control Mosquito Control - methods Permethrin Plasmodium falciparum Plasmodium falciparum - isolation & purification Pyrethrins - administration & dosage Sentinel Surveillance Tropical medicine Vectors. Intermediate hosts Burkina Faso Africa Plasmodium falciparum Anopheles Burkina Faso insecticide-treated materials malaria entomology Protozoa Apicomplexa Protozoal disease Insecticide Malaria Village Pesticides Parasitosis Result Infection Impregnation Curtain wall Sanitary control Vector Comparative study
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Summary:	In a region of Sudanese savannah in Burkina Faso, insecticide-treated curtains were installed in 8 out of 16 zones, each covering an area of about 50 km 2. Longitudinal entomological monitoring using CDC light traps was performed in 4 villages (2 intervention, 2 control) over a period of 3 years (including 1 year prior to intervention). In the 3rd year a cross-sectional entomological survey using spray catches was performed in 84 villages (40 intervention). Indoor vector densities in protected houses showed large reductions ( P = 0·01). The available data were also consistent with an impact on outdoor and unprotected indoor densities. The proportion of mosquitoes carrying sporozoites was 4·1% in protected villages compared with 11·5% in unprotected villages ( P = 0·07). Entomological inoculation rates fell substantially ( P = 0·01), reflecting these reductions. The impact of this intervention on mosquito survival appears to have been greater than those in similar trials conducted in the Gambia, Ghana and Kenya in which the intervention was applied over smaller areas.
Bibliography:	ark:/67375/HXZ-G662FQXS-W istex:28557C387D87C30ADE5718AACFE427D92D878CFD Public health and control Corresponding author.
ISSN:	0035-9203 1878-3503
DOI:	10.1016/S0035-9203(99)90343-7