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. 2019 Jun 3;101(1):65–77. doi: 10.4269/ajtmh.19-0089

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© The American Society of Tropical Medicine and Hygiene

This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

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Figure 1. — Map showing position of study villages along the shore of Lake Victoria, Kenya. The map was constructed using the QGIS version 2.18.22 and 3.2.1; the base map layer was added from the standard terrain tiles provided from http://maps.stamen.com through the OpenLayers function. The tiles are ^© Stamen Design (San Francisco, CA), under a creative commons attribution (CC BY 3.0) license. The data for the locations were obtained manually using cellular phone global positioning system (GPS) functionality according to the WGS1984 mercator projection. This figure appears in color at www.ajtmh.org.