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. 2012 May 15;6(5):e1615. doi: 10.1371/journal.pntd.0001615

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Hargrove et al.

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 properly credited.

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A. The effect on the basic reproductive value, R ₀, for three species of trypanosome of treating a proportion of cattle with insecticide that kills any fly attempting to feed off a treated animal. B. Detail for T. brucei, showing the differential effects on R ₀ for cattle and for humans.