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. 2016 Aug 5;15:399. doi: 10.1186/s12936-016-1448-6

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© The Author(s) 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. 4 — Paracheck RDTs before (top) and after (bottom) magnetic bead-based enhancement. The top RDT shows the result of applying a 5 µL blood sample containing 200 parasites/µL according to the manufacturer’s protocol. The bottom RDT shows enhancement at the test line after using the bead transfer device to apply HRPII-bound magnetic beads after mixing with a 100 µL sample containing 200 parasites/µL. HRPII is released from the deposited beads with imidazole-spiked running buffer