Fig. 5.

Effects of amplification on final size, peak size, and epidemic duration. Three types of influence functions: linear influence (green), fixed-order saturating influence (blue), and no influence (red), each with varying levels of amplification (p${}_a$): solid ($p_a=0$), dashed ($p_a=0.01)$, dash-dotted ($p_a=0.05$), and dotted with crosses ($p_a=0.1)$. Parameter values are all at the defaults listed in Table 2, except for ${\omega }_0=0.2$. The baseline case for comparison is shown in Fig. 4 (Color figure online)