| could the chagas disease elimination programme in venezuela be compromised by reinvasion of houses by sylvatic rhodnius prolixus bug populations? | the andean pact initiative (1997) committed andean countries to eliminate vectorial transmission of chagas disease by 2010 via widespread residual insecticide spraying. in venezuela, this aim could be compromised by reinvasion of houses by palm tree populations of the major vector rhodnius prolixus. to test this hypothesis, a multivariate logistic regression was undertaken of risk factors for triatomine infestation and colonization in 552 houses and 1068 peri-domestic outbuildings in barinas sta ... | 2006 | 17002733 |
| morphometric evidence for a possible role of rhodnius prolixus from palm trees in house re-infestation in the state of barinas (venezuela). | the main vector of chagas disease in venezuela is rhodnius prolixus. specimens of rhodnius sp., identified elsewhere as r. prolixus by molecular tools, were collected in barinas state (venezuela) before insecticide application, and compared by morphometric techniques with post-spraying, re-infesting insects after control. geometric morphometry was applied, allowing separate analyses of shape and size. the idea of a single species sharing silvatic and domestic/peri-domestic ecotopes was supported ... | 2007 | 17306204 |
| risk factors for trypanosoma cruzi human infection in barinas state, venezuela. | this study attempted to quantify the transmission of trypanosoma cruzi in children less than 15 years of age in barinas state, venezuela and investigate risk factors for infection. among 3,296 children, 4 (0.12%) were seropositive. the mother of one child also was also seropositive, which suggested that congenital transmission is a possible risk factor for chagas disease in this area. seroprevalence among the dwellers of 10 localities was 3.3%. rhodnius prolixus was detected in 7 localities and ... | 2007 | 17488916 |