Hamiltonian Analysis of Subcritical Stochastic Epidemic Dynamics

Figure 7

Phase plane representation of changing trachoma prevalence data from TANA trial shown in Figure 6. Each curve on the plot corresponds to one of the distributions shown in Figure 6, transformed to the - plane as in earlier figures (see text for details). Over time the curves shift upward and to the left, moving close to the vertical axis for smaller values of and diverging from it at larger values of , similar to the motion seen in the Hamiltonian analysis of the SIS model (Figure 4). Each curve in this figure is restricted to the range of the nonzero prevalence values.