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Are Land Use and Cover Changes and Socioeconomic Factors Associated with the Occurrence of Dengue Fever? A Case Study in Minas Gerais State, Brazil

Author

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  • Ana Clara Andrade

    (Federal Institute of the North of Minas Gerais, Januária 39270-000, MG, Brazil
    Department of General Biology, State University of Montes Claros, Montes Claros 39401-089, MG, Brazil)

  • Luiz Alberto Dolabela Falcão

    (Department of General Biology, State University of Montes Claros, Montes Claros 39401-089, MG, Brazil)

  • Magno Augusto Zazá Borges

    (Department of General Biology, State University of Montes Claros, Montes Claros 39401-089, MG, Brazil)

  • Marcos Esdras Leite

    (Department of Geosciences, State University of Montes Claros, Montes Claros 39401-089, MG, Brazil)

  • Mário Marcos do Espírito Santo

    (Department of General Biology, State University of Montes Claros, Montes Claros 39401-089, MG, Brazil)

Abstract

Several studies have already demonstrated the relationship between the loss of natural habitats and the incidence of diseases caused by vectors, such as dengue, which is an acute fever disease that is considered a serious public health problem. The aim of the present study was to investigate the relationship between the number of dengue cases and land use and cover changes (LUCC) and socioeconomic and climatic factors by municipality, using the state of Minas Gerais as a case study. For this, secondary data obtained from openly available sources were used. Natural vegetation cover data were obtained from the MAPBiomas platform and dengue occurrence data from the Ministry of Health, in addition to eight socioeconomic parameters from the Brazilian Institute for Geography and Statistics and precipitation data from the Brazilian Agricultural Research Corporation (EMBRAPA, Sete Lagoas, Minas Gerais). Between 2015 and 2019, 1,255,731 cases of dengue were recorded throughout the state of Minas Gerais, ranging from 0 to 227 per thousand inhabitants between municipalities. The occurrence of dengue was distributed throughout all regions of Minas Gerais and was associated with LUCC and socioeconomic factors. In general, municipalities with a net loss of natural vegetation, predominantly located in the Cerrado biome, had the highest number of dengue cases in the studied period. Additionally, the occurrence of dengue was associated to three socioeconomic parameters: population density, human development index (both positively), and Gini inequality index (negatively). These results indicate that, contrary to expectations, municipalities with better social conditions had more dengue cases. Our study indicates that natural vegetation is, directly or indirectly, involved in the ecosystem service of dengue control, despite the occurrence of this disease being affected by multiple factors that interact in a complex way. Thus, policies towards reducing deforestation must be complemented by a continuous investment in public health policies and a reduction in social inequalities to efficiently control dengue fever.

Suggested Citation

  • Ana Clara Andrade & Luiz Alberto Dolabela Falcão & Magno Augusto Zazá Borges & Marcos Esdras Leite & Mário Marcos do Espírito Santo, 2024. "Are Land Use and Cover Changes and Socioeconomic Factors Associated with the Occurrence of Dengue Fever? A Case Study in Minas Gerais State, Brazil," Resources, MDPI, vol. 13(3), pages 1-18, March.
    • Handle: RePEc:gam:jresou:v:13:y:2024:i:3:p:38-:d:1353794
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    References listed on IDEAS

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    1. Marcia C Castro & Andres Baeza & Cláudia Torres Codeço & Zulma M Cucunubá & Ana Paula Dal’Asta & Giulio A De Leo & Andrew P Dobson & Gabriel Carrasco-Escobar & Raquel Martins Lana & Rachel Lowe & Anto, 2019. "Development, environmental degradation, and disease spread in the Brazilian Amazon," PLOS Biology, Public Library of Science, vol. 17(11), pages 1-8, November.
    2. Bauhoff, Sebastian & Busch, Jonah, 2020. "Does deforestation increase malaria prevalence? Evidence from satellite data and health surveys," World Development, Elsevier, vol. 127(C).
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