Lessons learned from COVID-19 vaccination implementation: How psychological antecedents of vaccinations mediate the relationship between vaccine literacy and vaccine hesitancy

Adopting the risk information seeking and processing model to examine the impact of personality on vaccination intentions in Taiwan

Using the risk information seeking and processing model, this study examined how five personality traits-extraversion, neuroticism, conscientiousness, openness to experience, and agreeableness-influenced individuals' information-seeking behaviors and vaccination intentions. An online survey was administered by a reputable polling company commissioned by this study. The survey employed age, education, gender, and income as distinct strata for sampling, which resulted in 1100 valid questionnaires. The following five conclusions were drawn from the data analysis: (1) Of the five personality traits, two-extraversion and conscientiousness-exhibited a notable impact on individuals' information-seeking behaviors and vaccination intentions. Individuals with the remaining three personality traits-neuroticism, agreeableness, and openness to experience-demonstrate either passive or no information-seeking behaviors on COVID-19. (2) Conscientiousness was the only personality trait linked to increased awareness of COVID-19 characteristics. Moreover, conscientious individuals were inclined to avoid depending on ISNs to seek COVID-19 information and developed vaccination intentions. In contrast, individuals high in agreeableness heavily depended on ISNs for COVID-19 information to initiate information-seeking behaviors. Meanwhile, individuals high in extraversion relied on two variables-affective responses and ISNs-to begin their information-seeking behaviors. (3) Respondents' perceptions of COVID-19 characteristics and their affective responses did not positively influence their perceived information insufficiency directly; instead, both needed to be mediated by ISNs to initiate their information-seeking behaviors. (4) In contrast to the two variables-perceived COVID-19 characteristics and affective responses-this study found that ISNs regarding COVID-19 played a more substantial role in shaping respondents' information-seeking behaviors and vaccination intentions. (5) Unexpectedly, openness to experience was found to have no impact on information-seeking behaviors during the COVID-19 pandemic.

The Case for Assessing the Drivers of Measles Vaccine Uptake

Global measles cases are on the rise following disruptions to routine immunisation programs during the COVID-19 pandemic, with devastating consequences. According to the World Health Organization, the behavioural and social drivers of vaccination include what people think and feel about vaccines, social processes, motivation to vaccinate and practical barriers to vaccination. However, the drivers of measles vaccine uptake are not necessarily the same as those for other childhood vaccines, and we lack data on how these drivers specifically have changed during and since the COVID-19 pandemic. Without accurately measuring the behavioural and social drivers for measles vaccination, and ideally measuring them serially over time, countries cannot design, target and implement interventions that effectively increase and sustain measles vaccine coverage. This paper outlines what is and is not known about the behavioural and social drivers of measles vaccination and provides recommendations for improving their post-pandemic assessment.

Perspectives in the Development of Tools to Assess Vaccine Literacy

Vaccine literacy (VL) is the ability to find, understand, and evaluate vaccination-related information to make appropriate decisions about immunization. The tools developed so far for its evaluation have produced consistent results. However, some dimensions may be underestimated due to the complexity of factors influencing VL. Moreover, the heterogeneity of methods used in studies employing these tools hinders a comprehensive understanding of its role even more. To overcome these limitations, a path has been sought to propose new instruments. This has necessitated updating earlier literature reviews on VL and related tools, exploring its relationship with vaccine hesitancy (VH), and examining associated variables like beliefs, attitudes, and behaviors towards immunization. Based on the current literature, and supported by the re-analysis of a dataset from an earlier study, we propose a theoretical framework to serve as the foundation for creating future assessment tools. These instruments should not only evaluate the psychological factors underlying the motivational aspect of VL, but also encompass knowledge and competencies. The positioning of VL in the framework at the intersection between sociodemographic antecedents and attitudes, leading to behaviors and outcomes, explains why and how VL can directly or indirectly influence vaccination decisions by countering VH and operating at personal, as well as at organizational and community levels.

No time to lie: Examining the identity of pro-vaccination and anti-vaccination supporters through user-generated content

OBJECTIVE

This study delves into the social identity of pro-vaccination and anti-vaccination supporters, emphasizing an understanding of the values that shape these distinct identities. Furthermore, the research highlights that user-generated content pertaining to vaccines offers valuable insights into the underlying personal values of both pro-vaccination and anti-vaccination groups.

METHOD

We constructed a textual dataset based on 142,596 tweets. This data was analyzed in three steps. First, the linguistic characteristics of the textual data, together with the underlying personal values of the text creators, were identified using LIWC software. Second, the identified personal values were used as an input for the moderation analysis, which examined the relationship between personal values and social identity for pro- and anti-vaccination groups. Finally, an automated, in-depth text analysis was conducted in Mathematica to understand the narratives created by both groups.

RESULTS

The study findings indicate that both pro-vaccination and anti-vaccination supporters display characteristics of subcultures with distinct group identities. Consequently, based on the results, there is a need for more tailored public health communication strategies that address these two groups separately.

CONCLUSIONS

Understanding how users create health-related content based on their personal values is crucial. Acknowledging and appreciating the diverse personal values and identities within different groups in the vaccination discourse can inform health communication efforts, aligning these efforts with the specific values of each group. This targeted communication is vital for effectively conveying relevant peer-reviewed health information amid the abundance of health-related user-generated content.