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Fig. 2 | Malaria Journal

Fig. 2

From: The assembly effect: the connectedness between populations is a double‐edged sword for public health interventions

Fig. 2

Illustrative example to guide in interpreting the surface plots in the result. On the left edge of the plot where connectedness is 0%, take the point where the grey or the orange colour changes to the light blue or the dark blue colour. A horizontal line from that point (red line in the figure) is the “baseline” or “minimal” MDA threshold for patch 2 to achieve elimination if it was isolated from other patches. Deviations from this line describe the assembly effect of patch 2. Lower-case roman numerals represent the different areas of the surface plot. The joint areas “i”+“ii” illustrate a negative assembly effect on patch 2, describing how an increase in MDA coverage would have to follow an increase in connectedness with another patch for elimination to be possible in patch 2. The joint areas “ii”+“iii” depict a positive assembly effect on patch 1, showing how an increase in connectedness with patch 2 can help eliminate transmission in patch 1 granted that it has a sufficiently high MDA coverage. This figure is merely an illustration and it is not an actual model result

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