| vector blood meals are an early indicator of the effectiveness of the ecohealth approach in halting chagas transmission in guatemala. | a novel method using vector blood meal sources to assess the impact of control efforts on the risk of transmission of chagas disease was tested in the village of el tule, jutiapa, guatemala. control used ecohealth interventions, where villagers ameliorated the factors identified as most important for transmission. first, after an initial insecticide application, house walls were plastered. later, bedroom floors were improved and domestic animals were moved outdoors. only vector blood meal source ... | 2013 | 23382165 |
| risk factors for intradomiciliary infestation by the chagas disease vector triatoma dimidiatain jutiapa, guatemala. | seventeen variables were evaluated as possible risk factors for the intradomiciliary infestation with triatoma dimidiata in 644 houses in jutiapa, guatemala. during 2004 the houses were assessed for vector presence and evaluated for hygiene, cluttering, material comfort, construction conditions and number of inhabitants, among other factors. chi-square analysis detected significant associations between vector presence and eight variables related to domestic sanitary and construction conditions. ... | 2009 | 19287870 |
| impact of single and multiple residual sprayings of pyrethroid insecticides against triatoma dimidiata (reduviiade; triatominae), the principal vector of chagas disease in jutiapa, guatemala. | this study investigated the impact of single, double, and triple insecticide sprayings on indoor infestation of triatoma dimidiata in jutiapa, guatemala. up to three successive insecticide sprayings were applied in villages, where the indoor infestation index was > 5% before each spraying round or located adjacent to the persistently infested villages. among 64 villages with single spraying, the mean indoor infestation index reduced from 20.8% to 1.4% after 12 months, but rose to 8.1% after 33 m ... | 2006 | 16896123 |
| seroprevalence of trypanosoma cruzi infection among school-age children in the endemic area of guatemala. | in support of the national program for chagas disease control, we conducted a cross-sectional study to estimate the seroprevalence rate of trypanosoma cruzi infection across the five departments (chiquimula, jalapa, zacapa, jutiapa, and santa rosa) that are believed to comprise the entire principal endemic area in guatemala. also, so that the results could be used to identify areas of active transmission, we conducted the survey in school-aged children. we used an experimental enzyme-linked immu ... | 2003 | 12887026 |
| the impact of vector control on triatoma dimidiata in the guatemalan department of jutiapa. | 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 villag ... | 2003 | 12803860 |