Malaria around large dams in Africa: effect of environmental and transmission endemicity factors

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dc.creatorKibret, S.
dc.creatorLautze, Jonathan F.
dc.creatorMcCartney, Matthew P.
dc.creatorNhamo, Luxon
dc.creatorYan, G.
dc.date2019-12
dc.date2019-11-14T03:29:47Z
dc.date2019-11-14T03:29:47Z
dc.date.accessioned2026-06-27T18:39:09Z
dc.descriptionBackground: The impact of large dams on malaria has received widespread attention. However, understanding how dam topography and transmission endemicity influence malaria incidences is limited. Methods: Data from the European Commission’s Joint Research Center and Shuttle Radar Topography Mission were used to determine reservoir perimeters and shoreline slope of African dams. Georeferenced data from the Malaria Atlas Project (MAP) were used to estimate malaria incidence rates in communities near reservoir shorelines. Population data from the WorldPop database were used to estimate the population at risk of malaria around dams in stable and unstable areas. Results: The data showed that people living near (< 5 km) large dams in sub-Saharan Africa grew from 14.4 million in 2000 to 18.7 million in 2015. Overall, across sub-Saharan Africa between 0.7 and 1.6 million malaria cases per year are attributable to large dams. Whilst annual malaria incidence declined markedly in both stable and unstable areas between 2000 and 2015, the malaria impact of dams appeared to increase in unstable areas, but decreased in stable areas. Shoreline slope was found to be the most important malaria risk factor in dam-affected geographies, explaining 41–82% (P < 0.001) of the variation in malaria incidence around reservoirs. Conclusion: Gentler, more gradual shoreline slopes were associated with much greater malaria risk. Dam-related environmental variables such as dam topography and shoreline slopes are an important factor that should be considered in efforts to predict and control malaria around dams.
dc.identifierhttps://hdl.handle.net/10568/105726
dc.identifier.urihttp://hdl.handle.net/123456789/161776
dc.languageen
dc.publisherSpringer
dc.rightsOpen Access
dc.sourceKibret, S.; Lautze, Jonathan; McCartney, Matthew; Nhamo, Luxon; Yan, G. 2019. Malaria around large dams in Africa: effect of environmental and transmission endemicity factors. Malaria Journal, 18:1-12. doi: 10.1186/s12936-019-2933-5
dc.subjectmalaria
dc.subjectvector-borne diseases
dc.subjectdams
dc.subjectenvironmental effects
dc.subjectdisease transmission
dc.subjectendemics
dc.subjectmosquitoes
dc.subjectanopheles
dc.subjectbreeding habitats
dc.subjectwater reservoirs
dc.subjectslope
dc.subjecttopography
dc.subjectclimatic data
dc.subjectcommunities
dc.subjecthealth hazards
dc.titleMalaria around large dams in Africa: effect of environmental and transmission endemicity factors
dc.typeJournal Article

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Instituto Internacional para el Manejo del Agua (IWMI)