Fig. 5.

Mean-field approximation with $R_0=2.2,\hspace{0.17em}⟨k⟩=10,\hspace{0.17em}h=4$, using a $100\times 100$ grid of uniformly spaced households. (A) Seeding in 10 randomly selected households (the same households are used in each simulation). (B) Seeding in the center only. Incidence is given as a proportion of the total population for $\alpha$ ranging from two to six. SI Appendix, Fig. S10 shows time of peak incidence in the case $\alpha =6$ seeded as above.