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. 2017 Mar 8;10:136. doi: 10.1186/s13071-017-2059-y

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© The Author(s). 2017

Open AccessThis article is distributed under the terms of the Creative Commons Attribution 4.0 International License (http://creativecommons.org/licenses/by/4.0/), which permits unrestricted use, distribution, and reproduction in any medium, provided you give appropriate credit to the original author(s) and the source, provide a link to the Creative Commons license, and indicate if changes were made. The Creative Commons Public Domain Dedication waiver (http://creativecommons.org/publicdomain/zero/1.0/) applies to the data made available in this article, unless otherwise stated.

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Fig. 3 — Spatial clusters with a high infection rate of schistosomiasis detected in the period 2009–2014 using the Poisson model by flexible scanning. The cluster length limit was 15. Clusters detected by flexible spatial scan statistic act as irregular shapes and decreased from 14 in 2009 to 4 in 2014 and the number of villages within every most likely cluster fluctuated slightly with narrow range from 10 (in 2010 and 2013) to 13 (in 2013)