Fig. 22.

The effect of interventions on the first and second peak on G₂, as a function of η (the inverse of the average immunity period). Abbreviations in the legend: ‘hub’: limiting maximal node degree, ‘long’: cutting long edges, ‘perc’: social distancing. The first entry is increasing α. GIRG(3.3,1.3) is the original network. We see that the height of the first peak is insensitive to the immunity duration, and that cutting long edges is most effective in reducing the first peak. For the second peak, limiting node degree pushes the critical η for appearance of the second peak from 0.002 to 0.006, however, above that the second peak is twice as high as for other interventions. See also Figure 21.