The World Health Organization (WHO) named vaccine hesitancy as one of the top 10 threats to public health as of 2019.1 Although the COVID-19 vaccines manufactured by Pfizer-BioNTech and Moderna, first authorized for use in November 2020 and fully approved in August 2021,2 are widely available in most countries, vaccination uptake is insufficient.3
As of June 2022, 78% of the US population had received at least 1 vaccine dose and 66.8% were fully vaccinated against COVID-19.4 High confidence in vaccines is associated with greater uptake; thus, engendering confidence in patients is a critical area of intervention for increasing uptake of COVID-19 and other vaccines.5 Despite the steady increase in vaccine acceptance observed following the release of the COVID-19 vaccine, acceptance remains suboptimal.2,6
Demographic characteristics associated with lower vaccine acceptance include younger age, female sex, lower education and/or income, and Black race or Hispanic/Latinx ethnicity (compared to white or Asian non-Hispanic).6,7 Moreover, patients who are skeptical of vaccine safety and efficacy are associated with lower intentions to vaccinate. In contrast, patients with a history of receiving influenza vaccinations and those with a greater concern about COVID-19 and their risk of infection have increased vaccine intentions.6
Numerous strategies exist to increase vaccine acceptance; however, there does not appear to be a single “best” method to overcome individual or parental vaccine hesitancy for COVID-19 or other vaccines.8,9 There are no large-scale randomized controlled trials (RCTs) demonstrating one strategy as more effective than another. In this review, we outline a variety of evidenced-based strategies to help patients overcome vaccine hesitancy for COVID-19 and other vaccines, with a focus on practical tips for primary care physicians (PCPs).
Which talking points are likely to resonate with your patients?
Intervention strategies promote vaccine acceptance by communicating personal benefit, collective benefit, or both to vaccine-hesitant patients. In a study sample of US undergraduate students, Kim and colleagues10 found that providing information about the benefits and risks of influenza vaccines resulted in significantly less vaccine intent compared to communicating information only on the benefits. Similarly, Shim and colleagues11 investigated how game theory (acting to maximize personal payoff regardless of payoff to others) and altruism affect influenza vaccination decisions. Through a survey-based study of 427 US university employees, researchers found altruistic motivation had a significant impact on the decision to vaccinate against influenza, resulting in a shift from self-interest to that of the good of the community.11
A German trial on COVID-19 vaccine acceptance by Sprengholz and colleagues12 found that communications about the benefits of vaccination, availability of financial compensation for vaccination, or a combination of both, did not increase a person’s willingness to get vaccinated. This trial, however, did not separate out individual vs collective benefit, and it was conducted prior to widespread COVID-19 vaccine availability.
In an online RCT conducted in early 2021, Freeman and colleagues13 randomized UK adults to 1 of 10 different “information conditions.” Participants read from 1 of 10 vaccine scripts that varied by the talking points they addressed. The topics that researchers drew from for these scripts included the personal or collective benefit from the COVID-19 vaccine, safety and effectiveness of the vaccine, and the seriousness of the pandemic. They found communications emphasizing personal benefit from vaccination and safety concerns were more effective in participants identified as being strongly hesitant (defined as those who said they would avoid getting the COVID-19 vaccine for as long as possible or who said they’d never get it). However, none of the information arms in this study decreased vaccine hesitancy among those who were doubtful of vaccination (defined as those who said they would delay vaccination or who didn’t know if they would get vaccinated).13
Continue to: When encountering patients who are strongly...