The link between climate and cholera, a serious health problem in many parts of the world, has become stronger in recent decades, say researchers from the University of Michigan, the University of Barcelona and the International Center for Diarrhoeal Disease Research in Bangladesh.
Their research will be published in the online version of the Proceedings of the National Academy of Sciences this week.
In a previous study published in the journal Science, the researchers found evidence that El Nino-Southern Oscillation (ENSO), a major source of climate variability from year to year, influences cycles of cholera. In that work, they looked only at climate and disease data from Bangladesh for the past two decades. In the new research, they compared those results with data from Bangladesh for the periods 1893-1920 and 1920-1940 to see whether the coupling between climate variability and cholera cycles has become stronger in recent decades. Their examination of the data, which relied on a suite of techniques called time series analysis, suggests that it has.
Nancy Ross-Flanigan | EurekAlert!
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