[V+: strategies improving vaccination coverage among children with chronic diseases]

Despite widespread recommendations, vaccination coverage in high-risk groups is generally low. Various interventions have shown to be effective in improving immunization rates, especially in the healthy population. In this paper, we present a project supported by the Italian Centre for Disease Control, whose aim is to study determinants of vaccine administration to children with chronic diseases and to study the effect of experimental multilevel interventions to increase vaccination coverage in these patients.