Figure 4

Summary of the proportion of simulations in which the various patterns in the persistence and replacement of the indigenous and imported genotypes were seen in the two city model, assuming that the importation rate was either 1 or 3 cases/million/year, for different levels of effective vaccination coverage and for different assumptions about mixing between individuals in the model (i.e. e ranging between 0.01 and 0.5, corresponding to minimal and random mixing respectively between individuals in the two cities).