Experimental control of Triatoma infestans in poor rural villages of Bolivia through community participation
Résumé
Background: Triatoma infestans is the main vector of Chagas disease in the southern cone countries. Present control
strategies based on indoor and outdoor residual insecticide spraying are not sufficient to control disease
transmission, particularly in Bolivia. Techniques based on the management of the human environment may
be good alternatives or supplements.
Methods: Social and entomological surveys were carried out in four villages of Bolivia situated in the dry inter-
Andean Valleys and the Chaco region. Risk factors for house infestation by T. infestanswere identified, and an ecohealth
intervention based on education and community participation was carried out to reduce the risks of house
infestation. It consisted of implementing simple and low cost vector control techniques such as coating of mud
walls, cleaning activities and removal of poultry that enter rooms to lay eggs.
Results: The eco-health intervention significantly reduced the number of infested bedrooms, the mean abundance
of T. infestans in bedrooms and beds, especially in the Chaco region. Mud wall coating was well accepted
and could be proposed as a supplementary tool to the National Program of Chagas Disease Control to enhance
the effects of insecticide sprayings.
Conclusions: Even if cleaning activities were still neglected, community participation proved to be effective in
reducing house infestation.
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Lardeux-2015-Eco-Bio-Social Chagas Bolivia Trans R Soc Trop Med Hyg-2015-Lardeux-150-8.pdf (209)
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Origine | Publication financée par une institution |
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