Chagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil
Autor(a) principal: | |
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Data de Publicação: | 2017 |
Outros Autores: | , , , |
Tipo de documento: | Artigo |
Idioma: | eng |
Título da fonte: | Repositório Digital do Instituto Evandro Chagas (Patuá) |
Texto Completo: | https://patua.iec.gov.br/handle/iec/2898 |
Resumo: | BACKGROUND: Triatoma sordida and Triatoma pseudomaculata are frequently captured triatomine species in the Brazilian savannah and caatinga biomes, respectively, and in Brazilian domiciles. OBJECTIVES: This study identified eco-epidemiological changes in Chagas disease in northern Minas Gerais state, Brazil, and considered the influence of environmental shifts and both natural and anthropogenic effects. METHODS: Domicile infestation and Trypanosoma cruzi infection rates were obtained from triatomines and sylvatic reservoirs during the following two time periods: the 1980s and 2007/2008. Entomological and climatic data with land cover classification derived from satellite imagery were integrated into a geographic information system (GIS), which was applied for atmospheric correction, segmentation, image classification, and mapping and to analyse data obtained in the field. Climatic data were analysed and compared to land cover classifications. RESULTS: A comparison of current data with data obtained in the 1980's showed that T. sordida colonised domiciliary areas in both periods, and that T. pseudomaculata did not colonise these areas. There was a tendency toward a reduction in T. cruzi infection rates in sylvatic reservoirs, and of triatomines captured in both households and in the sylvatic environment. T. sordida populations have reduced in the sylvatic environment, while T. pseudomaculata showed an expanding trend in the region compared to counts observed in the 1980's in the sylvatic environment. This may be related to high deforestation rates as well as gradual increases in land surface temperature (LST) and temperatures along the years. MAIN CONCLUSIONS: Our results suggest a geographical expansion of species into new biomes as a result of anthropogenic and climatic changes that directly interfere with the reproductive and infection processes of vectors. |
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Vianna, Elisa NevesGuimarães, Ricardo José de Paula Souza eSouza, Christian RezendeGorla, DavidDiotaiuti, Liléia2017-12-04T09:23:55Z2017-12-04T09:23:55Z2017VIANNA, Elisa Neves et al. Chagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil. Memórias do Instituto Oswaldo Cruz, v. 112, n. 11, p. 760-768, Nov. 2017.1678-8060https://patua.iec.gov.br/handle/iec/289810.1590/0074-02760170061BACKGROUND: Triatoma sordida and Triatoma pseudomaculata are frequently captured triatomine species in the Brazilian savannah and caatinga biomes, respectively, and in Brazilian domiciles. OBJECTIVES: This study identified eco-epidemiological changes in Chagas disease in northern Minas Gerais state, Brazil, and considered the influence of environmental shifts and both natural and anthropogenic effects. METHODS: Domicile infestation and Trypanosoma cruzi infection rates were obtained from triatomines and sylvatic reservoirs during the following two time periods: the 1980s and 2007/2008. Entomological and climatic data with land cover classification derived from satellite imagery were integrated into a geographic information system (GIS), which was applied for atmospheric correction, segmentation, image classification, and mapping and to analyse data obtained in the field. Climatic data were analysed and compared to land cover classifications. RESULTS: A comparison of current data with data obtained in the 1980's showed that T. sordida colonised domiciliary areas in both periods, and that T. pseudomaculata did not colonise these areas. There was a tendency toward a reduction in T. cruzi infection rates in sylvatic reservoirs, and of triatomines captured in both households and in the sylvatic environment. T. sordida populations have reduced in the sylvatic environment, while T. pseudomaculata showed an expanding trend in the region compared to counts observed in the 1980's in the sylvatic environment. This may be related to high deforestation rates as well as gradual increases in land surface temperature (LST) and temperatures along the years. MAIN CONCLUSIONS: Our results suggest a geographical expansion of species into new biomes as a result of anthropogenic and climatic changes that directly interfere with the reproductive and infection processes of vectors.Universidade de Brasília. Faculdade de Medicina. Departamento de Patologia. Brasília, DF, Brasil.Ministério da Saúde. Secretaria de Vigilância em Saúde. Instituto Evandro Chagas. Laboratório de Geoprocessamento. Ananindeua, PA, Brasil.Alô Meio Ambiente e Geoprocessamento Ltda. Belo Horizonte, MG, Brasil.Universidad Nacional de Córdoba. Instituto de Altos Estudios Espaciales Mario Gulich. Consejo Nacional de Investigaciones Científicas y Técnicas. Córdoba, AR.Fundação Oswaldo Cruz. Centro de Pesquisas René Rachou. Laboratório de Triatomíneos e Epidemiologia da Doença de Chagas. Belo Horizonte, MG, Brasil.engInstituto Oswaldo CruzChagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazilinfo:eu-repo/semantics/publishedVersioninfo:eu-repo/semantics/articleTriatominae / crescimento & desenvolvimentoTrypanosoma cruzi / crescimento & desenvolvimentoDoença de ChagasTriatoma / crescimento & desenvolvimentoMudança ClimáticaEpidemiologiaGeoprocessamentoTriatoma sordidaTriatoma pseudomaculataMinas Gerais (MG)Mato Verde (MG)info:eu-repo/semantics/openAccessreponame:Repositório Digital do Instituto Evandro Chagas (Patuá)instname:Instituto Evandro Chagas (IEC)instacron:IECORIGINALChagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil.pdfChagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil.pdfapplication/pdf1716529https://patua.iec.gov.br/bitstreams/566a8b07-8035-40f7-aab2-bceab27aa874/downloadeddaa7f488a068a3aebc0d703edbb5a7MD51LICENSElicense.txtlicense.txttext/plain; charset=utf-871https://patua.iec.gov.br/bitstreams/66a34ab7-8f39-43dd-b8d3-eb11a363eebc/download52f1732ea66fbd1123abe39f5373b797MD52TEXTChagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil.pdf.txtChagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil.pdf.txtExtracted texttext/plain43255https://patua.iec.gov.br/bitstreams/63414428-4610-417a-b09c-b0e782e83f50/downloade379f62f2df4af8d075045ed4893b30cMD55THUMBNAILChagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil.pdf.jpgChagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil.pdf.jpgGenerated Thumbnailimage/jpeg5691https://patua.iec.gov.br/bitstreams/51af1cb6-f3db-4223-977b-78f88ede3547/download7c9e5cb0a1580e50ddf78eb898277199MD56iec/28982022-10-21 00:38:48.934oai:patua.iec.gov.br:iec/2898https://patua.iec.gov.brRepositório InstitucionalPUBhttps://patua.iec.gov.br/oai/requestclariceneta@iec.gov.br || Biblioteca@iec.gov.bropendoar:2022-10-21T00:38:48Repositório Digital do Instituto Evandro Chagas (Patuá) - Instituto Evandro Chagas (IEC)falseVG9kb3Mgb3MgZG9jdW1lbnRvcyBkZXNzYSBjb2xlw6fDo28gc2VndWVtIGEgTGljZW7Dp2EgQ3JlYXRpdmUgY29tbW9ucy4= |
dc.title.pt_BR.fl_str_mv |
Chagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil |
title |
Chagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil |
spellingShingle |
Chagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil Vianna, Elisa Neves Triatominae / crescimento & desenvolvimento Trypanosoma cruzi / crescimento & desenvolvimento Doença de Chagas Triatoma / crescimento & desenvolvimento Mudança Climática Epidemiologia Geoprocessamento Triatoma sordida Triatoma pseudomaculata Minas Gerais (MG) Mato Verde (MG) |
title_short |
Chagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil |
title_full |
Chagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil |
title_fullStr |
Chagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil |
title_full_unstemmed |
Chagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil |
title_sort |
Chagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil |
author |
Vianna, Elisa Neves |
author_facet |
Vianna, Elisa Neves Guimarães, Ricardo José de Paula Souza e Souza, Christian Rezende Gorla, David Diotaiuti, Liléia |
author_role |
author |
author2 |
Guimarães, Ricardo José de Paula Souza e Souza, Christian Rezende Gorla, David Diotaiuti, Liléia |
author2_role |
author author author author |
dc.contributor.author.fl_str_mv |
Vianna, Elisa Neves Guimarães, Ricardo José de Paula Souza e Souza, Christian Rezende Gorla, David Diotaiuti, Liléia |
dc.subject.decsPrimary.pt_BR.fl_str_mv |
Triatominae / crescimento & desenvolvimento Trypanosoma cruzi / crescimento & desenvolvimento Doença de Chagas Triatoma / crescimento & desenvolvimento Mudança Climática Epidemiologia Geoprocessamento Triatoma sordida Triatoma pseudomaculata Minas Gerais (MG) Mato Verde (MG) |
topic |
Triatominae / crescimento & desenvolvimento Trypanosoma cruzi / crescimento & desenvolvimento Doença de Chagas Triatoma / crescimento & desenvolvimento Mudança Climática Epidemiologia Geoprocessamento Triatoma sordida Triatoma pseudomaculata Minas Gerais (MG) Mato Verde (MG) |
description |
BACKGROUND: Triatoma sordida and Triatoma pseudomaculata are frequently captured triatomine species in the Brazilian savannah and caatinga biomes, respectively, and in Brazilian domiciles. OBJECTIVES: This study identified eco-epidemiological changes in Chagas disease in northern Minas Gerais state, Brazil, and considered the influence of environmental shifts and both natural and anthropogenic effects. METHODS: Domicile infestation and Trypanosoma cruzi infection rates were obtained from triatomines and sylvatic reservoirs during the following two time periods: the 1980s and 2007/2008. Entomological and climatic data with land cover classification derived from satellite imagery were integrated into a geographic information system (GIS), which was applied for atmospheric correction, segmentation, image classification, and mapping and to analyse data obtained in the field. Climatic data were analysed and compared to land cover classifications. RESULTS: A comparison of current data with data obtained in the 1980's showed that T. sordida colonised domiciliary areas in both periods, and that T. pseudomaculata did not colonise these areas. There was a tendency toward a reduction in T. cruzi infection rates in sylvatic reservoirs, and of triatomines captured in both households and in the sylvatic environment. T. sordida populations have reduced in the sylvatic environment, while T. pseudomaculata showed an expanding trend in the region compared to counts observed in the 1980's in the sylvatic environment. This may be related to high deforestation rates as well as gradual increases in land surface temperature (LST) and temperatures along the years. MAIN CONCLUSIONS: Our results suggest a geographical expansion of species into new biomes as a result of anthropogenic and climatic changes that directly interfere with the reproductive and infection processes of vectors. |
publishDate |
2017 |
dc.date.accessioned.fl_str_mv |
2017-12-04T09:23:55Z |
dc.date.available.fl_str_mv |
2017-12-04T09:23:55Z |
dc.date.issued.fl_str_mv |
2017 |
dc.type.status.fl_str_mv |
info:eu-repo/semantics/publishedVersion |
dc.type.driver.fl_str_mv |
info:eu-repo/semantics/article |
format |
article |
status_str |
publishedVersion |
dc.identifier.citation.fl_str_mv |
VIANNA, Elisa Neves et al. Chagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil. Memórias do Instituto Oswaldo Cruz, v. 112, n. 11, p. 760-768, Nov. 2017. |
dc.identifier.uri.fl_str_mv |
https://patua.iec.gov.br/handle/iec/2898 |
dc.identifier.issn.-.fl_str_mv |
1678-8060 |
dc.identifier.doi.-.fl_str_mv |
10.1590/0074-02760170061 |
identifier_str_mv |
VIANNA, Elisa Neves et al. Chagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil. Memórias do Instituto Oswaldo Cruz, v. 112, n. 11, p. 760-768, Nov. 2017. 1678-8060 10.1590/0074-02760170061 |
url |
https://patua.iec.gov.br/handle/iec/2898 |
dc.language.iso.fl_str_mv |
eng |
language |
eng |
dc.rights.driver.fl_str_mv |
info:eu-repo/semantics/openAccess |
eu_rights_str_mv |
openAccess |
dc.publisher.none.fl_str_mv |
Instituto Oswaldo Cruz |
publisher.none.fl_str_mv |
Instituto Oswaldo Cruz |
dc.source.none.fl_str_mv |
reponame:Repositório Digital do Instituto Evandro Chagas (Patuá) instname:Instituto Evandro Chagas (IEC) instacron:IEC |
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Instituto Evandro Chagas (IEC) |
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IEC |
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IEC |
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Repositório Digital do Instituto Evandro Chagas (Patuá) |
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Repositório Digital do Instituto Evandro Chagas (Patuá) |
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