Vaccine Hesitancy: Past and Present in the COVID-19 Era
Vaccine-hesitant individuals are a heterogeneous group that are indecisive in varying degrees – more of a spectrum – about specific vaccines or vaccination in general. Vaccine hesitancy is complex, varying by vaccine, time, context, geographic region, and sub-population. There is an “infodemic” that needs to be fought alongside the pandemic as exposure to misinformation is linked to a reduction in an individual’s intentions to vaccinate. In addressing vaccine hesitancy, it is key to 1) identify the subpopulations susceptible to vaccine hesitancy, 2) diagnose issues through various research methods – surveys, in-depth interviews, focus groups, or media monitoring – and 3) develop context-tailored, evidence-based interventions to address those reasons. Sensitivity to the context and effective communication are key to successful immunization programs, alongside other critical factors (confidence, complacency and convenience – the 3Cs model); engaging stakeholders in dialogue is critical to intervention design and implementation.