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. 2009 Apr 1;259(2):253–263. doi: 10.1016/j.jtbi.2009.03.029

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Crown copyright © 2009 Published by Elsevier Ltd. All rights reserved.

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Fig. 8 — Total number of sensitive infections (dashed curves), resistant infections (dotted curves), and infections caused by both pathogen strains (solid curves) in the pair-approximation model with (a) $R_{0}^{s} = 2.4$ ; and (b) $R_{0}^{s} = 3$ , as a function of the treatment level.