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. 2008 Mar 19;3(3):e1839. doi: 10.1371/journal.pone.0001839

Figure 5. The effect of changing treatment level during a pandemic on the total number of clinical infections caused by all strains, with Inline graphic.

Figure 5

Simulations were seeded with an initial treatment level of (a) 85%; (b) 78% (optimal level); (c) 50%; (d) 25%, and then changed to the level shown on the horizontal axis at the time displayed on the vertical axis (corresponding to the time-course of the epidemic). The color bars illustrate the total number of clinical cases due to all strains, relative to that generated when the optimal constant treatment level (78% in this case) is implemented.