| seroprevalence of trypanosoma cruzi infection in three rural communities in guatemala. | a systematic, house-based serological survey for trypanosoma cruzi seroreactivity was conducted in three contiguous communities in olopa municipality, chiquimula department, guatemala. blood samples from a total of 292 individuals in 63 households were examined by enzyme-linked immunosorbent assay. the seropositive rate ranged from 0% to 20.8% for the three communities, with a mean of 15.1%. log-linear models showed that seroprevalence was significantly related to age (p < 0.005) but not to sex. ... | 1999 | 10574012 |
| 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 |
| environmental determinants of the distribution of chagas disease vectors in south-eastern guatemala. | the associations between the presence of triatomines and environmental variables were studied using correlation analysis and logistic regression models for a sample of villages in the south-eastern provinces of guatemala. information on the presence of triatoma dimidiata, t. nitida and rhodnius prolixus came from entomological surveys carried out by the ministry of health of guatemala as part of its vector control programme. environmental information for each village was extracted from digital t ... | 2007 | 18686245 |
| risk factors for domestic infestation by the chagas disease vector, triatoma dimidiata in chiquimula, guatemala. | in guatemala prior to control initiatives, the main vectors of trypanosoma cruzi, the causative agent of chagas disease, were rhodnius prolixus and triatoma dimidiata. this study conducted in 2006 in the department of chiquimula recorded a high level of t. dimidiata infestation and an absence of r. prolixus in all surveyed communities. in guatemala, the presence of t. dimidiata as domestic, peridomestic and sylvatic populations results in control difficulties as houses are re-infested from the s ... | 2013 | 23597014 |