Journal
ACADEMIC PEDIATRICS
Volume 21, Issue 4, Pages S9-S16Publisher
ELSEVIER SCIENCE INC
Keywords
nudges; social networks; vaccination; vaccine confidence
Categories
Funding
- Aspen Institute
- Sabin Foundation
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Behavioral science provides insights into increasing vaccine uptake through changing thoughts, feelings, and social norms. Directly changing behavior is more reliable in increasing vaccine uptake. Healthcare provider recommendations are the most effective intervention, but the mechanism behind their effectiveness is still unclear.
Behavioral science offers several ideas about what it takes to get people to vaccinate. Colleagues and I previously reviewed the evidence for these propositions and put forward what has become known as the Increasing Vaccination Model. To make the model more accessible to practitioners, the current paper summarizes the main insights from the earlier work. First, observational studies show clearly that thoughts and feelings are correlated with vaccine uptake. Such constructs include perceived risk of harm from infectious disease and confidence in vaccine safety and efficacy. However, interventions have not generally shown that changing thoughts and feelings increases vaccine uptake. Second, social processes are promising in observational studies. Such constructs include social norms, altruism, and sharing through social media. More research is needed in this promising area before it will be possible to conclude whether social processes are effective intervention targets. Third, interventions that directly change behavior- without trying to change what people think or feel or their social experience- are reliably effective ways to increase vaccine uptake. Such interventions include reminders, defaults, and vaccine requirements. Finally, the most potent intervention for increasing vaccine uptake is a health care provider recommendation, but it is still unclear whether such recommendations are effective because they increase confidence, set a social norm, or reflect a direct behavior change technique. The paper ends by describing use of the model by a World Health Organization working group as it considers opportunities to address low vaccination uptake globally.
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