| [the dot immunoenzymatic assay on nitrocellulose (dot-elisa) in the diagnosis of chagas disease. ii. seroepidemiologic study in 4 rural communities of venezuela]. | a survey of human trypanosoma cruzi infection in four rural communities of two venezuelan states with different epidemiological chagas' disease situations was carried out using the dot-elisa and conventional serology. in the two hamlets of zulia state, no seropositives were found in the under-15 age group whereas seropositivity in the over-15 group was 15.6%. in cojedes state, the two hamlets studied exhibited a seropositivity of 8.9% in the under-15 group and 51.6% in the over-15 group. upon co ... | 1989 | 2520832 |
| density estimates of the domestic vector of chagas disease, rhodnius prolixus stål (hemiptera: reduviidae), in rural houses in venezuela. | we reported the use of the timed manual method, routinely employed as an indicator to the relative abundance of domestic triatomine bugs, to estimate their absolute density in houses. a team of six people collected rhodnius prolixus stål bugs from the walls and roofs of 14 typical palm-leaf rural houses located in cojedes, venezuela, spending 40 minutes searching in each house. one day after these manual collections, all the houses were demolished and the number of triatomine bugs were identifie ... | 1995 | 7614667 |
| [prevalence of human infections by trypanosoma cruzi in blood banks in venezuela]. | primary investigations carried out in blood banks in venezuela during the 1950s, indicated that overall seroprevalence for trypanosoma cruzi infection was 12% amongst blood donors. in venezuela, blood donation is free. all public and private blood banks are controlled by the ministry of health. as from 1988 the elisa technique was uniformly used in blood banks for the detection of t. cruzi infections. annual median seroprevalence, between 1988 to 1992, was 1.20% (1.09-1.94%), with geographical v ... | 1993 | 8115813 |
| infected dogs as a risk factor in the transmission of human trypanosoma cruzi infection in western venezuela. | a total of 565 mongrel dogs from rural localities of venezuela were examined by serological (dat, ifat and elisa) and parasitological tests to address the status of trypanosoma cruzi infection and to evaluate their role in the transmission of the infection to human population. the overall percentage of sero-positive infected dogs shown to be 67.6% (382/565):253 (61.7%) from 47 villages belonging to 8 states located at 4 different geographical regions of western venezuela and 129 (33.5%) dogs fro ... | 2006 | 16797466 |
| [psychosocial variables associated to housing conditions colonized by the vector of chagas' disease]. | the venezuelan unfinished housing that prevails in the rural areas (palm roof and unfinished walls) is the main factor for the settlement of the chagas' disease vector in the country. this research had as principal objective: to explore the social behavior variable that maintain housing in such condition. it was carried out in the municipality of tinaquillo, cojedes state, an endemic zone of this disease. the research was based on a previous study on the same subject. the sample used in that stu ... | 1990 | 2135561 |