University of Vermont, Burlington, VT, USA.
Am J Trop Med Hyg. 2013 Apr;88(4):630-7. doi: 10.4269/ajtmh.12-0448. Epub 2013 Feb 4.
In this study, we evaluate the effect of participatory Ecohealth interventions on domestic reinfestation of the Chagas disease vector Triatoma dimidiata after village-wide suppression of the vector population using a residual insecticide. The study was conducted in the rural community of La Brea, Guatemala between 2002 and 2009 where vector infestation was analyzed within a spatial data framework based on entomological and socio-economic surveys of homesteads within the village. Participatory interventions focused on community awareness and low-cost home improvements using local materials to limit areas of refuge and alternative blood meals for the vector within the home, and potential shelter for the vector outside the home. As a result, domestic infestation was maintained at ≤ 3% and peridomestic infestation at ≤ 2% for 5 years beyond the last insecticide spraying, in sharp contrast to the rapid reinfestation experienced in earlier insecticide only interventions.
在这项研究中，我们评估了参与式生态健康干预措施对使用残留杀虫剂在村庄范围内抑制病媒三带喙库蚊种群后，恰加斯病病媒三带喙库蚊家庭再感染的影响。该研究于 2002 年至 2009 年在危地马拉的拉布雷亚农村社区进行，在该社区中，根据村庄内家庭的昆虫学和社会经济调查，在空间数据框架内分析了病媒的感染情况。参与式干预措施侧重于社区意识和使用当地材料的低成本家庭改进，以限制病媒在家庭内的避难所和替代血液来源，以及病媒在家外的潜在栖息地。结果，在最后一次喷洒杀虫剂后的 5 年内，家庭内感染率保持在≤3%，家庭周围感染率保持在≤2%，与早期仅使用杀虫剂干预措施所经历的快速再感染形成鲜明对比。
