2003
DOI: 10.1179/000349803235001895
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Abstract: In 2000, a national control operation against the triatomine vectors of Trypanosoma cruzi, based on house spraying with residual pyrethroid insecticides, was initiated in Guatemala. The impact of the operation against Triatoma dimidiata in the most heavily infested department, Jutiapa, was evaluated by pre- and post-spraying surveys of the vector populations. Of the houses checked for Tri. dimidiata in the baseline surveys, 18.3% were found to be infested with the bug, and in 12.1% of the villages investigated… Show more

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Cited by 40 publications
(41 citation statements)
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“…Re-infestation by T. dimidiata following insecticide spraying has been frequently observed in the Yucatan peninsula, Mexico, 28,31 as well as in Guatemala. 33 Thus, alternative control interventions focusing on non-domiciliated triatomines 30,31 may be more appropriate for the region, and more generally, for all or most of the taxonomic groups of the T. dimidiata complex.…”
mentioning
confidence: 99%
“…Re-infestation by T. dimidiata following insecticide spraying has been frequently observed in the Yucatan peninsula, Mexico, 28,31 as well as in Guatemala. 33 Thus, alternative control interventions focusing on non-domiciliated triatomines 30,31 may be more appropriate for the region, and more generally, for all or most of the taxonomic groups of the T. dimidiata complex.…”
mentioning
confidence: 99%
“…[5][6][7]13 Although a formal control was not present in this study, results from numerous studies have shown that residual insecticides alone cannot curtail reinfestation long term. [5][6][7][8][9]18,19,23 The time scale over which residual insecticides are effective varies regionally but is typically on the order of weeks in peridomestic environments and months in domestic habitats. In La Brea, annual interventions were thought necessary because of rapid reinfestation following treatment.…”
Section: Discussionmentioning
confidence: 99%
“…5 Although Guatemala, like its neighbors, has realized significant progress in vector control through insecticide spraying, estimates of the annual incidence of Chagas disease remain among the highest in Central America, due largely to regional differences in the effectiveness of control strategies. 3,[5][6][7][8][9] In view of these health challenges, current global economic constraints, and the understanding gained through past control initiatives, interest in developing new or improved, sustainable, and cost effective long-term controls is increasing. [10][11][12] Toward this end, Ecohealth approaches that integrate community participation, home improvements, and current ecological knowledge regarding the vector are being proposed as an alternative to, or in combination with, traditional insecticide controls.…”
Section: Introductionmentioning
confidence: 99%
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“…12 Large-scale operations in eastern Guatemala also showed that large-scale insecticide spraying was effective in substantially reducing house infestation by T. dimidiata. [13][14][15] However, unlike R. prolixus, eliminating domestic populations of T. dimidiata is difficult because of its capacity of reinfesting human dwellings after insecticide spraying. Such reinfestation by T. dimidiata is likely to occur with the passage of time after spraying and in geographical hot spots.…”
mentioning
confidence: 99%