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Theses

Entre distance géographique et distance sociale : le risque de paludisme-infection en milieu urbain africain : L'exemple de l'agglomération de Dakar, Sénégal

Abstract : This thesis applies an Exploratory Spatial Data Analysis (ESDA) approach to study a complex phenomenon in a data scarce environment: malaria infection in Dakar. Each component of the malaria pathogenic system is necessary but not sufficient to result in an infection when acting in isolation. For malaria infection to occur, three components need to interact: the parasite, the vector, and the human host. The identification of areas where these three components can easily interact is therefore essential in the fight against malaria and the improvement of programs for the prevention and control or elimination of the disease. ESDA, still rarely applied in developing countries, is thus defined as a research approach but also as a way to provide answers to global health challenges. It leads to observation, from different angles, on the social and spatial determinants of malaria infection, as well as the examination of existing interactions between its three components. Several streams of quantitative information were collected, both directly and indirectly related to the study of malaria. More specifically, multi-temporal satellite imagery, census data, and results from social and health surveys have been integrated into a Geographic Information System (GIS) to describe the city and its inhabitants. Combining these datasets has enabled to study the spatial variability of the risk of malaria infection. The use of statistical and geostatistical analysis, including both bi- and multivariate statistics, has revealed that the risk of infection in Dakar is highly dependent on the so-called ’social distance’. It describes the physical or economic ability of residents to move away from potential areas at risk, by avoiding the pathogenic areas, i.e., places where potentially infected vectors proliferate. Thus, a strong link between exposure (which results in a bigger parasite reservoir in marginalized areas) and social vulnerability of individuals (which increases substantially the risk of malaria infection) has been outlined.
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https://hal.archives-ouvertes.fr/tel-01278668
Contributor : Marion Borderon <>
Submitted on : Wednesday, February 24, 2016 - 4:30:29 PM
Last modification on : Tuesday, May 26, 2020 - 6:51:00 PM
Document(s) archivé(s) le : Sunday, November 13, 2016 - 3:18:54 AM

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  • HAL Id : tel-01278668, version 1

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Marion Borderon. Entre distance géographique et distance sociale : le risque de paludisme-infection en milieu urbain africain : L'exemple de l'agglomération de Dakar, Sénégal. Géographie. Aix Marseille Université, 2016. Français. ⟨tel-01278668⟩

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