Figure 8From: FRED (A Framework for Reconstructing Epidemic Dynamics): an open-source software system for modeling infectious diseases and control strategies using census-based populations Infection attack rate for 3142 counties in the United States, using FRED’s baseline pandemic influenza transmission parameters. The plot shows the mean attack rate for each county over 20 stochastic simulations. The attack rate displays significant heterogeneity across US counties.Back to article page