Spatio-temporal clustering of cholera: The impact of flood control in Matlab, Bangladesh, 1983–2003

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• 作者：Margaret Carrel ; Michael Emch ; Peter K. Streatfield ; Mohammad Yunus
• 关键词：Cholera ; Bangladesh ; Cluster ; Flood protection ; Spatial scan statistic
• 刊名：Health and Place
• 出版年：2009
• 出版时间：September 2009
• 年：2009
• 卷：15
• 期：3
• 页码：771-782
• 全文大小：680 K

文摘

Introducing flood control to an area of endemic waterborne diseases could have significant impacts on spatio-temporal occurrence of cholera. Using 21-year data from Bangladesh, we conducted cluster analysis to explore changes in spatial and temporal distribution of cholera incidence since the construction of flood control structures. Striking changes in temporal cluster patterns emerged, including a shift from dry-season to rainy-season clusters following flood protection and delayed clustering inside the protected areas. Spatial differences in pre-flood protection and post-protection cholera clusters are weaker. Changes in spatio-temporal cholera clustering, associated with implementation of flood protection strategies, could affect local cholera prevention efforts.