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. 2016 Mar 22;15:180. doi: 10.1186/s12936-016-1235-4

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© Wangdi et al. 2016

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. 7 — Creation of buffer zone and extracting households that lie within 1-km radius of the index case for reactive case detection. a Selection of household that reported malaria; b steps involved in creation of buffer zone; c buffer zone is created with 1-km radius of the foci of infection; d enlisting households that lie within the buffer zone)