Homophily impacts the success of vaccine roll-outs

Abstract

While it is known that vaccine adoption is clustered, most modelling studies are based on vaccines which efficacy is almost 100%. Here, motivated by the relatively low efficacy of COVID-19 vaccines, the authors explore the interplay of vaccination clustering and imperfect immunization and its effect on the size and probability of outbreaks, revealing a phenomenology which is absent for perfect immunization.