id author title date pages extension mime words sentences flesch summary cache txt cord-103538-vh6ma7k7 Smaldino, Paul E. Coupled Dynamics of Behavior and Disease Contagion Among Antagonistic Groups 2020-10-05 .txt text/plain 4978 257 49 We analyze a simple model of coupled behavior-change and infection in a structured population characterized by homophily and outgroup aversion. While we might expect strong selection-both biological and cultural-for adaptive responses to epidemics, complications such as the potentially differing time 33 scales of culture and disease transmission and the existence of social structures that shape adoption may complicate convergence to adaptive behavioral solutions. Unlike a disease, which is reasonably modeled as equally transmissible between any susceptible-infected pairing, where behavior is concerned, susceptible individuals are more likely to adopt when interacting with in-126 group adopters, but less likely to adopt when interacting with outgroup adopters. Not so with outgroup aversion, in which the peak infection rates increase relative to the low homophily case ( Figure 3E , F). However, when R 0 is high enough and outgroup aversion induces 258 group differences in behavior adoption, strong homophily among group 2 can lead to larger, albeit delayed, epidemics in the initially-uninfected segment of the population. ./cache/cord-103538-vh6ma7k7.txt ./txt/cord-103538-vh6ma7k7.txt