Fig 4. The change in the patch-specific proportion of infected hosts in a high transmission patch (R _0,i = 3.6) and a low transmission patch (R _0,i = 0.2) as a function of increasing rate of movement.

The proportion of infected hosts in the low transmission patch increase with increasing rate of movement because it is receiving infected immigrants from other patches with high transmission. The proportion of infected hosts in the high transmission patch decrease with increasing rate of movement because of increasing emigration of infected hosts to other patches.