A stitch in time: The importance of water and sanitation services (WSS) infrastructure maintenance for cholera risk. A geospatial analysis in Harare, Zimbabwe.

Understanding the factors associated with cholera outbreaks is an integral part of designing better approaches to mitigate their impact. Using a rich set of georeferenced case data from the cholera epidemic that occurred in Harare from September 2018 to January 2019, we apply spatio-temporal modelli...

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Main Authors: Sophie Ayling, Sveta Milusheva, Faith Maidei Kashangura, Yi Rong Hoo, Hugh Sturrock, George Joseph
Format: Article
Language:English
Published: Public Library of Science (PLoS) 2023-06-01
Series:PLoS Neglected Tropical Diseases
Online Access:https://doi.org/10.1371/journal.pntd.0011353
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author Sophie Ayling
Sveta Milusheva
Faith Maidei Kashangura
Yi Rong Hoo
Hugh Sturrock
George Joseph
author_facet Sophie Ayling
Sveta Milusheva
Faith Maidei Kashangura
Yi Rong Hoo
Hugh Sturrock
George Joseph
author_sort Sophie Ayling
collection DOAJ
description Understanding the factors associated with cholera outbreaks is an integral part of designing better approaches to mitigate their impact. Using a rich set of georeferenced case data from the cholera epidemic that occurred in Harare from September 2018 to January 2019, we apply spatio-temporal modelling to better understand how the outbreak unfolded and the factors associated with higher risk of being a reported case. Using Call Detail Records (CDR) to estimate weekly population movement of the community throughout the city, results suggest that broader human movement (not limited to infected agents) helps to explain some of the spatio-temporal patterns of cases observed. In addition, results highlight a number of socio-demographic risk factors and suggest that there is a relationship between cholera risk and water infrastructure. The analysis shows that populations living close to the sewer network, with high access to piped water are associated with at higher risk. One possible explanation for this observation is that sewer bursts led to the contamination of the piped water network. This could have turned access to piped water, usually assumed to be associated with reduced cholera risk, into a risk factor itself. Such events highlight the importance of maintenance in the provision of SDG improved water and sanitation infrastructure.
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spelling doaj.art-15d57b44619249e39b692c3e9154356c2023-06-22T05:31:46ZengPublic Library of Science (PLoS)PLoS Neglected Tropical Diseases1935-27271935-27352023-06-01176e001135310.1371/journal.pntd.0011353A stitch in time: The importance of water and sanitation services (WSS) infrastructure maintenance for cholera risk. A geospatial analysis in Harare, Zimbabwe.Sophie AylingSveta MilushevaFaith Maidei KashanguraYi Rong HooHugh SturrockGeorge JosephUnderstanding the factors associated with cholera outbreaks is an integral part of designing better approaches to mitigate their impact. Using a rich set of georeferenced case data from the cholera epidemic that occurred in Harare from September 2018 to January 2019, we apply spatio-temporal modelling to better understand how the outbreak unfolded and the factors associated with higher risk of being a reported case. Using Call Detail Records (CDR) to estimate weekly population movement of the community throughout the city, results suggest that broader human movement (not limited to infected agents) helps to explain some of the spatio-temporal patterns of cases observed. In addition, results highlight a number of socio-demographic risk factors and suggest that there is a relationship between cholera risk and water infrastructure. The analysis shows that populations living close to the sewer network, with high access to piped water are associated with at higher risk. One possible explanation for this observation is that sewer bursts led to the contamination of the piped water network. This could have turned access to piped water, usually assumed to be associated with reduced cholera risk, into a risk factor itself. Such events highlight the importance of maintenance in the provision of SDG improved water and sanitation infrastructure.https://doi.org/10.1371/journal.pntd.0011353
spellingShingle Sophie Ayling
Sveta Milusheva
Faith Maidei Kashangura
Yi Rong Hoo
Hugh Sturrock
George Joseph
A stitch in time: The importance of water and sanitation services (WSS) infrastructure maintenance for cholera risk. A geospatial analysis in Harare, Zimbabwe.
PLoS Neglected Tropical Diseases
title A stitch in time: The importance of water and sanitation services (WSS) infrastructure maintenance for cholera risk. A geospatial analysis in Harare, Zimbabwe.
title_full A stitch in time: The importance of water and sanitation services (WSS) infrastructure maintenance for cholera risk. A geospatial analysis in Harare, Zimbabwe.
title_fullStr A stitch in time: The importance of water and sanitation services (WSS) infrastructure maintenance for cholera risk. A geospatial analysis in Harare, Zimbabwe.
title_full_unstemmed A stitch in time: The importance of water and sanitation services (WSS) infrastructure maintenance for cholera risk. A geospatial analysis in Harare, Zimbabwe.
title_short A stitch in time: The importance of water and sanitation services (WSS) infrastructure maintenance for cholera risk. A geospatial analysis in Harare, Zimbabwe.
title_sort stitch in time the importance of water and sanitation services wss infrastructure maintenance for cholera risk a geospatial analysis in harare zimbabwe
url https://doi.org/10.1371/journal.pntd.0011353
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