Publication:
Cholera Risk in Lusaka: A Geospatial Analysis to Inform Improved Water and Sanitation Provision

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dc.contributor.authorGething, Peter W.
dc.contributor.authorAyling, Sophie
dc.contributor.authorMugabi, Josses
dc.contributor.authorMuximpua, Odete Duarte
dc.contributor.authorJoseph, George
dc.contributor.authorKagulura, Solomon Sitinadziwe
dc.date.accessioned2023-06-26T14:32:57Z
dc.date.available2023-06-26T14:32:57Z
dc.date.issued2023-06-26
dc.description.abstractUrbanization combined with climate change are exacerbating water scarcity for an increasing number of the world’s emerging cities. Water and sanitation infrastructure, which in the first place was largely built to cater only to a small subsector of developing city populations during colonial times, are increasingly coming under excessive strain. In the rapidly growing cities of the developing world, expansion does not always keep pace with population demand, leading to waterborne diseases, such as cholera (Vibrio cholerae) and typhoid (Salmonella serotype Typhi). Funding gaps therefore make targeting for efficient spending on infrastructure upgrades essential for reducing the burden of disease. This paper applies geospatial analysis in Lusaka, Zambia, in the context of the cholera outbreak of October 2017 to May 2018, to identify different water and sanitation infrastructure investment scenarios and their relative impact on reducing the risk of cholera in the city. The analysis presented uses cholera case location data and geospatial covariates, including the location of and access to networked and non-networked Water and sanitation infrastructure, groundwater vulnerability, and drainage, to generate a high-resolution map of cholera risk across the city. The analysis presents scenarios of standalone or combined investments across sewerage coverage and maintenance, on-site sanitation improvements, piped water network coverage and quality, and ensuring the safety of point source water. It identifies the investment most strongly correlated with the largest reduction in cholera risk as the provision of flush to sewer infrastructure citywide. However, it also considers the trade-offs in terms of financial cost versus health benefits and takes note of where the next highest health benefits could be achieved for a much lower cost. Finally, the analysis was done in the context of a considered restructuring of an existing World Bank investment, the Lusaka Sanitation Program. It identifies what appears to be the most efficient combined initiative as partial sanitation investment scale-up and investment in piped water in 10 priority wards where the cholera risk was highest.en
dc.identifierhttp://documents.worldbank.org/curated/en/099818506052334587/IDU023b094f009b07048570b2e70098a9538d71d
dc.identifier.doi10.1596/1813-9450-10469
dc.identifier.urihttps://openknowledge.worldbank.org/handle/10986/39920
dc.languageEnglish
dc.language.isoen
dc.publisherWorld Bank, Washington, DC
dc.relation.ispartofseriesPolicy Research Working Papers; 10469
dc.rightsCC BY 3.0 IGO
dc.rightsCC BY 3.0 IGO
dc.rightsCC BY 3.0 IGO
dc.rights.holderWorld Bank
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/igo/
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/igo/
dc.rights.urihttps://creativecommons.org/licenses/by/3.0/igo/
dc.subjectWATER SCARCITY
dc.subjectURBAN WATER
dc.subjectWATER UTILITIES
dc.subjectSPATIAL MODELLING
dc.subjectCHOLERA RISK MAP
dc.subjectINFRASTRUCTURE
dc.subjectTARGETING INFRASTRUCTURE INVESTMENT
dc.titleCholera Risk in Lusakaen
dc.title.subtitleA Geospatial Analysis to Inform Improved Water and Sanitation Provisionen
dc.typeWorking Paper
dspace.entity.typePublication
okr.crossref.titleCholera Risk in Lusaka: A Geospatial Analysis to Inform Improved Water and Sanitation Provision
okr.date.disclosure2023-06-05
okr.date.lastmodified2023-06-07T00:00:00Zen
okr.doctypePolicy Research Working Paper
okr.doctypePublications & Research
okr.docurlhttp://documents.worldbank.org/curated/en/099818506052334587/IDU023b094f009b07048570b2e70098a9538d71d
okr.guid099818506052334587
okr.identifier.docmidIDU-23b094f0-9b07-4857-b2e7-098a9538d71d
okr.identifier.doi10.1596/1813-9450-10469
okr.identifier.doihttp://dx.doi.org/10.1596/1813-9450-10469
okr.identifier.externaldocumentum34075002
okr.identifier.internaldocumentum34075002
okr.identifier.reportWPS10469
okr.import.id867
okr.importedtrueen
okr.language.supporteden
okr.pdfurlhttp://documents.worldbank.org/curated/en/099818506052334587/pdf/IDU023b094f009b07048570b2e70098a9538d71d.pdfen
okr.region.administrativeEastern and Southern Africa
okr.region.countryZambia
okr.sectorSanitation,Health-HG,Public Administration - Water, Sanitation and Waste Management
okr.themeCity-wide Infrastructure and Service Delivery,Urban services and housing for the poor,Pollution management and environmental health
okr.themeUrban development,Environment and natural resource management
okr.topicHealth, Nutrition and Population::Communicable Diseases
okr.topicUrban Development::Urban Water & Waste Management
okr.topicHealth, Nutrition and Population::Cholera
okr.topicWater Supply and Sanitation::Water Supply and Sanitation Finance
okr.unitWater East Africa Region (SAEW3)
okr.unitSouth Asia Water (SSAW2)
relation.isAuthorOfPublication399fdbd1-12c5-5ac7-9727-5ef73db8386d
relation.isAuthorOfPublication.latestForDiscovery399fdbd1-12c5-5ac7-9727-5ef73db8386d
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