Please use this identifier to cite or link to this item:
https://www.arca.fiocruz.br/handle/icict/32741
Type
ArticleCopyright
Open access
Collections
- IOC - Artigos de Periódicos [12341]
Metadata
Show full item record
MOLECULAR GENETICS REVEAL THAT SILVATIC RHODNIUS PROLIXUS DO COLONISE RURAL HOUSES
Rhodnius prolixus
Venezuela
Áreas rurais
Doença de Chagas
Melhorias de habitação
Silvatic Rhodnius prolixus
Chagas disease
Venezuela
Housing improvements
Author
Affilliation
London School of Hygiene and Tropical Medicine. Department of Infection and Tropical Diseases. Pathogen Molecular Biology Unit. London, United Kingdom.
Universidad de Carabobo. Facultad de Ciencias de la Salud. CNRFV-BIOMED. Sede Aragua, Maracay, Venezuela.
London School of Hygiene and Tropical Medicine. Department of Infection and Tropical Diseases. Pathogen Molecular Biology Unit. London, United Kingdom.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Medicina Tropical. Rio de Janeiro, RJ. Brasil.
London School of Hygiene and Tropical Medicine. Department of Infection and Tropical Diseases. Pathogen Molecular Biology Unit. London, United Kingdom.
Universidad de Carabobo. Facultad de Ciencias de la Salud. CNRFV-BIOMED. Sede Aragua, Maracay, Venezuela.
London School of Hygiene and Tropical Medicine. Department of Infection and Tropical Diseases. Pathogen Molecular Biology Unit. London, United Kingdom.
Fundação Oswaldo Cruz. Instituto Oswaldo Cruz. Departamento de Medicina Tropical. Rio de Janeiro, RJ. Brasil.
London School of Hygiene and Tropical Medicine. Department of Infection and Tropical Diseases. Pathogen Molecular Biology Unit. London, United Kingdom.
Abstract
Rhodnius prolixus is the main vector of Chagas disease in Venezuela. Here, domestic infestations of poor
quality rural housing have persisted despite four decades of vector control. This is in contrast to the Southern Cone region
of South America, where the main vector, Triatoma infestans, has been eliminated over large areas. The repeated
colonisation of houses by silvatic populations of R. prolixus potentially explains the control difficulties. However, controversy
surrounds the existence of silvatic R. prolixus: it has been suggested that all silvatic populations are in fact Rhodnius robustus,
a related species of minor epidemiological importance. Here we investigate, by direct sequencing (mtcytb, D2) and by
microsatellite analysis, 1) the identity of silvatic Rhodnius and 2) whether silvatic populations of Rhodnius are isolated from
domestic populations.
Keywords in Portuguese
Genética MolecularRhodnius prolixus
Venezuela
Áreas rurais
Doença de Chagas
Melhorias de habitação
Keywords
Molecular GeneticsSilvatic Rhodnius prolixus
Chagas disease
Venezuela
Housing improvements
Share