After estimating the infection network, we performed EGP and found a set of 67 nodes that will efficiently fragment the estimated network. We then immunized the same 67 nodes on the actual infection network. To evaluate the effectiveness of the method, we picked 10 random seeds and ran 500 SIR epidemics each on the immunized network to find the average number of infected nodes as a function of time. Using the same seeds, we also ran 500 SIR epidemics each on the original infection network and found that EGP immunization reduced the average size of the epidemics by 58%-88% and lowered the average peak incidence rate by 51%-68% (see Videos S3, S4, S5, and S6).