| probability of transmission of chagas disease by triatoma infestans (hemiptera: reduviidae) in an endemic area of santiago del estero, argentina. | the daily probability (p) of transmission of trypanosoma cruzi to a noninfected human host by an infected triatoma infestans bug was estimated using field data from a 2-year longitudinal study carried out in a rural settlement of 20 households in amamá, santiago del estero, argentina. the following information was used for this purpose: the bug density and the proportion of infected bugs; the bug biting rate and the distribution of bites between humans and animals; the age-specific seropositivit ... | 1990 | 2127382 |
| comparison of two sampling methods for domestic populations of triatoma infestans in north-west argentina. | in mud-and-thatch houses of santiago del estero province, north-west argentina, where no insecticides had been sprayed officially to control domestic infestations of the chagas disease vector triatoma infestans (klug) (hemiptera: reduviidae), two knockdown (kd) insecticidal collection procedures were compared with the standard flush-out (fo) method for sampling t. infestans. bugs were collected by fo using 0.2% tetramethrin in bedrooms of (1) 41 houses of amamá village employing 1 man-hour of ca ... | 1993 | 7690269 |
| potential colonization of the peridomicile by triatoma guasayana (hemiptera:reduviidae) in santiago del estero, argentina. | sylvatic triatomines might use the peridomicile as a 1st step in the process of domiciliation. therefore, we evaluated the capability of sylvatic species to colonize the peridomicile of a rural area in the province of santiago del estero, argentina. the research was carried out in 6 houses in the village of trinidad. the person per hour capture method was employed to determine the presence of triatomines in all the buildings (n = 44). dispersing adults were collected by means of light traps and ... | 1996 | 8699459 |
| spatial distribution of triatoma guasayana (hemiptera:reduviidae) in hardwood forest biotopes in santiago del estero, argentina. | in the study area triatoma guasayana wygodzinsky & abalos is the only wild triatomine found sympatric with triatoma infestans (klug) in peridomestic premises. the trypanosoma cruzi chagas wild cycle is centered around the same biotopes occupied by t. guasayana, which are also visited mainly by opossums with annual prevalences of 29-50%. twelve hectares were sampled for 4 consecutive years during all seasons. during that time, 420 t. guasayana individuals were collected in 11.3% of 1,188 biotopes ... | 1997 | 9103752 |
| field trials of an improved cost-effective device for detecting peridomestic populations of triatoma infestans (hemiptera: reduviidae) in rural argentina. | an improved device for detecting peridomestic triatoma infestans consisting of one-liter recycled tetra brik milk boxes with a central structure was tested using a matched-pair study design in two rural areas in argentina. in olta (la rioja), the boxes were installed beneath the thatched roofs and on the vertical wooden posts of each peridomestic structure. after a 5-month exposure, at least one of the recovered boxes detected 88% of the 24 t. infestans-positive sites, and 86% of the 7 negative ... | 2002 | 12471423 |
| isolation of paecilomyces lilacinus (thom) samson (ascomycota: hypocreales) from the chagas disease vector, triatoma infestans klug (hemiptera: reduviidae) in an endemic area in argentina. | a survey for entomopathogenic fungi of the chagas disease vector triatoma infestans was conducted in two provinces of argentina from march-december 2003. field-collected insects that died in the laboratory were individually maintained in moist chamber and incubated at 22 degrees c. triatominae adults infected with the fungus paecilomyces lilacinus were found at el quebracho (27 degrees 34's-64 degrees 31'w), santiago del estero province, argentina, in december 2003. paecilomyces lilacinus was cu ... | 2006 | 17123036 |