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Table 2 5As Taxonomy for Determinants of Vaccine Uptake

From: What have we learnt from measles outbreaks in 3 English cities? A qualitative exploration of factors influencing vaccination uptake in Romanian and Roma Romanian communities

AccessThe ability of individuals to be reached by, or to reach, recommended vaccines
AffordabilityThe ability of individuals to afford vaccination, both in terms of financial and non-financial costs (e.g. time)
AwarenessThe degree to which individuals have knowledge of the need for, and availability of, recommended vaccines and their objective benefits and risks
AcceptanceThe degree to which individuals accept, question or refuse vaccination
ActivationThe degree to which individuals are nudged towards vaccination uptake