| [leishmaniasis in ecuador. 6. epidemiological and entomological note on the focus of leishmaniasis in zumba]. | the zumba focus of tegumentary leishmaniasis lies in the southwards amazonian region of ecuador. a clinico-epidemiological study has been carried out in the area on 83 patients attending health centers. all the biotopes suitable for sandflies, including dwellings, have been sampled from february to september 1992 by light trap and human bait catches. the number of sandflies caught amounts to 2,547. anthropophilic sandfly fauna is poor and only three species have been recorded. lutzomyia serrana ... | 1994 | 8024349 |
| current and future niche of north and central american sand flies (diptera: psychodidae) in climate change scenarios. | ecological niche models are useful tools to infer potential spatial and temporal distributions in vector species and to measure epidemiological risk for infectious diseases such as the leishmaniases. the ecological niche of 28 north and central american sand fly species, including those with epidemiological relevance, can be used to analyze the vector's ecology and its association with transmission risk, and plan integrated regional vector surveillance and control programs. in this study, we mod ... | 2013 | 24069478 |
| is lutzomyia serrana (diptera, psychodidae, phlebotominae) present in ecuador? | we describe a multivariate metric comparison of three sandfly species showing strong differences in size, which questions the geographical distribution of one of them. two species are represented by a single population (l. robusta and l. guilvardae) and one by two populations (l. serrana). all of them belong to the series serrana (diptera, psychodidae, phlebotominae). the morphometric data confirm that l. guilvardae is a distinct species. however, they suggest that l. robusta and l. serrana in e ... | 2004 | 15224583 |
| [new findings on the geographic distribution of the verrucarum group (diptera: psychodidae) in colombia]. | the incrimination of sand flies belonging to verrucarum species group in the leishmaniasis transmission underscores the need for a detailed information on the geographical distribution of these species. the current listing adds 34 new records that extend significantly the knowledge of the geographical distribution of the verrucarum group in colombia. the most important new records pertain to lutzomyia spinicrassa in the tropical dry forest of the atlantic coast, lutzomyia ovallesi in the orinoco ... | 2003 | 14582337 |
| temporal and spatial variation of phlebotomine (diptera: psychodidae) community diversity in a cutaneous leishmaniasis endemic area of costa rica. | phlebotomine sand fly species composition and diversity were studied in acosta, an area of costa rica endemic for cutaneous leishmaniasis. two cdc miniature light traps per house were set overnight in 72 houses distributed in 6 localities, once a month, during the rainy seasons of 1994 and 1995. of the 22 species collected, the most common were lutzomyia serrana (damasceno & arouck), l. youngi feliciangelli & murillo, l. ylephiletor (fairchild & hertig), l. shannoni (dyar), l. cruciata (coquille ... | 2000 | 10730490 |
| estimating carrying capacity in a newly colonized sand fly lutzomyia serrana (diptera: psychodidae). | the phlebotomine sand fly lutzomyia serrana (damasceno & arouck) was mass-reared tinder conditions of varying densities in an effort to improve colony production efficiency. to do this, the experimental carrying capacity of a standard rearing chamber was determined, i.e., the optimum population size in relation to density (individuals per unit of space). rearing chambers of 100 cm3 were populated with 1-50 l. serrana engorged females and an equal number of males. laboratory conditions were maint ... | 2002 | 11942751 |
| [standardization of the method proposed by the world health organization for determining the susceptibility levels of leishmaniasis vectors to insecticides]. | the who method for determining insecticide resistance was standardized for several species of lutzomyia sand flies under laboratory and field conditions. the biological assays were applied solely to optimize the conditions for the control, i.e., without insecticide, and to estimate mortality due to handling or other unfavorable conditions. adult female flies from 3 laboratory colonies and one field strain were tested: two laboratory strains of lutzomyia longipalpis, one laboratory strain of lutz ... | 2002 | 12152485 |
| [approximation to the cdc method to determine insecticide susceptibility in leishmaniasis vectors]. | the centers for disease control (cdc, usa) has proposed a simplified method for the determinations of insecticide resistance in adult mosquitoes, using 250 ml wheaton bottles containing measured dosages. insects are transferred into the bottle for 1 hour and monitored for mortality at regular intervals. in standardizing the cdc method for use with phlebotomine sand flies, effects of the solvent without insecticide were evaluated. two colonized sand fly vector species were used: lutzomyia longipa ... | 2003 | 12696404 |