Comparison between numerically computed values of the TER for two different values of the time step, <i>Δt</i>, for the stochastic SIR model with seasonal transmission.

A. The TER (obtained by solving system of equations <a href="http://www.ploscompbiol.org/article/info:doi/10.1371/journal.pcbi.1012364#pcbi.1012364.e132" target="_blank">(11)</a> from the main text numerically) when sustained transmission is only possible for a short period of the year (<i>β</i>₀ = 1, <i>β</i>₁ = 5 and <i>γ</i> = 4 . 9 month^-1). Results are shown for both the time step used in the main text (<i>Δt</i> = 0 . 00033 months; blue line) and for a shorter time step (<i>Δt</i> = 0 . 00017 months; black dotted line). B. Analogous results to panel A, but with <i>β</i>₀ = 3. C. Analogous results to panel A, but with <i>β</i>₀ = 5. D. Analogous results to panel A, but with <i>β</i>₀ = 7. E. Analogous results to panel A, but with <i>β</i>₀ = 9. F. Analogous results to panel A, but with <i>β</i>₀ = 11. In all panels, a threshold of <i>M</i> = 100 cumulative infections was used when computing the TER and the overall population size was assumed to be individuals. Insets show as a function of . (PDF)