Chagas disease ecoepidemiology and environmental changes in northern Minas Gerais state, Brazil

Autor: Ricardo José de Paula Souza e Guimarães, Liléia Diotaiuti, Christian Rezende Souza, Elisa Neves Vianna, David Eladio Gorla
Rok vydání: 2017
Předmět:
0301 basic medicine
Chagas disease
GEOPROCESSING
Biome
lcsh:QR1-502
Trypanosoma cruzi / crescimento & desenvolvimento
Mudan?a Clim?tica
medicine.disease_cause
Population density
lcsh:Microbiology
purl.org/becyt/ford/1 [https]
0302 clinical medicine
Triatoma sordida
EPIDEMIOLOGY
Triatoma
Minas Gerais (MG)
Triatoma / crescimento & desenvolvimento
biology
Ecology
Geography
Doen?a de Chagas
Epidemiological Monitoring
Triatoma pseudomaculata
epidemiology
Geoprocessamento
Seasons
Triatominae
Brazil
CIENCIAS NATURALES Y EXACTAS
Microbiology (medical)
lcsh:Arctic medicine. Tropical medicine
lcsh:RC955-962
Otras Ciencias Biológicas
030106 microbiology
030231 tropical medicine
Land cover
Article
Ciencias Biológicas
03 medical and health sciences
Triatominae / crescimento & desenvolvimento
Deforestation
Infestation
medicine
Animals
Humans
Ecosystem
geoprocessing
purl.org/becyt/ford/1.6 [https]
Epidemiologia
Population Density
Spatial Analysis
CHAGAS DISEASE
Chagas
Doença de
biology.organism_classification
medicine.disease
Mato Verde (MG)
Insect Vectors
TRIATOMA
Housing
Zdroj: Repositório Digital do Instituto Evandro Chagas (Patuá)
Instituto Evandro Chagas (IEC)
instacron:IEC
CONICET Digital (CONICET)
Consejo Nacional de Investigaciones Científicas y Técnicas
instacron:CONICET
Memórias do Instituto Oswaldo Cruz, Volume: 112, Issue: 11, Pages: 760-768, Published: NOV 2017
Memórias do Instituto Oswaldo Cruz
Memórias do Instituto Oswaldo Cruz., Vol 112, Iss 11, Pp 760-768
Repositório Institucional da UnB
Universidade de Brasília (UnB)
instacron:UNB
ISSN: 1678-8060
0074-0276
DOI: 10.1590/0074-02760170061
Popis: Universidade de Bras?lia. Faculdade de Medicina. Departamento de Patologia. Bras?lia, DF, Brasil. Minist?rio da Sa?de. Secretaria de Vigil?ncia em Sa?de. Instituto Evandro Chagas. Laborat?rio de Geoprocessamento. Ananindeua, PA, Brasil. Al? Meio Ambiente e Geoprocessamento Ltda. Belo Horizonte, MG, Brasil. Universidad Nacional de C?rdoba. Instituto de Altos Estudios Espaciales Mario Gulich. Consejo Nacional de Investigaciones Cient?ficas y T?cnicas. C?rdoba, AR. Funda??o Oswaldo Cruz. Centro de Pesquisas Ren? Rachou. Laborat?rio de Triatom?neos e Epidemiologia da Doen?a de Chagas. Belo Horizonte, MG, Brasil. 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.
Databáze: OpenAIRE
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