Environmental influence on Triatoma vitticeps occurrence and Trypanosoma cruzi infection in the Atlantic Forest of south-eastern Brazil

dc.creatorDario, Maria Augusta
dc.creatorMaranhão, Paulo Henrique Coelho
dc.creatorSantos, Gilbert Queiroz dos
dc.creatorRocha, Marcos de Meneses
dc.creatorFalqueto, Aloísio
dc.creatorSilva, Luiz Felipe Coutinho Ferreira da
dc.creatorJansen, Ana Maria
dc.creatorXavier, Samanta Cristina das Chagas
dc.date2021-11-12T14:17:40Z
dc.date2021-11-12T14:17:40Z
dc.date2021
dc.date.accessioned2023-09-26T20:26:07Z
dc.date.available2023-09-26T20:26:07Z
dc.identifierDARIO, Maria Augusta et al. Environmental influence on Triatoma vitticeps occurrence and Trypanosoma cruzi infection in the Atlantic Forest of south-eastern Brazil. Geospatial Health, v. 16, n. 997, p. 1-12, 2021.
dc.identifier1827-1987
dc.identifierhttps://www.arca.fiocruz.br/handle/icict/49811
dc.identifier10.4081/gh.2021.997
dc.identifier.urihttps://repositorioslatinoamericanos.uchile.cl/handle/2250/8856832
dc.descriptionTrypanosoma cruzi requires a triatomine insect vector for its life cycle, which can be complex in different enzootic scenarios, one of which is the unique transmission network in the Atlantic Forest of south-eastern Brazil. In Espírito Santo (ES) State, highly infected Triatoma vitticeps are frequently reported invading domiciles. However, triatomines were not found colonizing residences and mammals in the surrounding areas did not present T. cruzi infection. To date, the biotic and abiotic variables that modulate T. vitticeps occurrence and T. cruzi infection in ES State are still unknown. The aim of this study was to identify the environmental variables that modulate their occurrence. Local thematic maps were generated for two response variables: T. vitticeps occurrence and T. cruzi infection. The following explanatory variables were tested: climate (temperature, relative air humidity and rainfall), altitude elevation, mammalian species richness as well as soil and vegetation types. Spatiotemporal distribution patterns and correlation levels between response and explanatory variables were assessed through spatial statistics and map algebra modelling. The central and southern mesoregions presented higher T. vitticeps and T. cruzi distributions and can be considered transmission hotspots. The explanatory variables that can explain these phenomena were relative air humidity, average temperature, soil type, altitude elevation and mammalian species richness. Algebra map modelling demonstrated that central and southern mesoregions presented the environmental conditions needed for T. vitticeps occurrence and T. cruzi infection. The consideration of environmental variables is essential for understanding the T. cruzi transmission cycle. Cartographic and statistical methodologies used in parasitology have been demonstrated to be reliable and enlightening tools that should be incorporated routinely to expand the understanding of vector-borne parasite transmission.
dc.formatapplication/pdf
dc.languageeng
dc.publisherPage Press
dc.rightsopen access
dc.subjectTrypanosoma cruzi
dc.subjectInfecção
dc.subjectInfluência ambiental
dc.subjectTriatoma vitticeps
dc.subjectMata Atlântica
dc.subjectOcorrência
dc.subjectSudeste do Brasil
dc.subjectTrypanosoma cruzi infection
dc.subjectEnvironmental influence
dc.subjectTriatoma vitticeps
dc.subjectOccurrence
dc.subjectAtlantic Forest
dc.subjectSouth-eastern Brazil
dc.titleEnvironmental influence on Triatoma vitticeps occurrence and Trypanosoma cruzi infection in the Atlantic Forest of south-eastern Brazil
dc.typeArticle


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