Hesitant but vaccinated: assessing COVID-19 vaccine hesitancy among the recently vaccinated

Attitudes toward COVID-19 vaccination among urogynecology patients

Objective

Urogynecology patients skew older and often require intimate exams to treat non-life-threatening conditions, thus making care particularly susceptible to the effects of COVID-19. We aim to understand COVID-19 vaccination attitudes amongst urogynecology patients during the pandemic, which has adversely affected healthcare delivery, to identify measures that can be undertaken to improve care going forward.

Study design

Cross-sectional surveys of urogynecology patients were conducted in three different states (Delaware, New Jersey, and Pennsylvania) between March and August 2021. Demographics, vaccination status, and COVID-19 attitudes were analyzed. Chi-square tests investigated group differences between vaccine-hesitant and unhesitant subjects.

Results

Out of 158 surveys, eighty-three percent of respondents were vaccinated or planning to get vaccinated. Older age and regular flu vaccination predicted COVID-19 vaccination. Ninety-three percent of subjects were comfortable attending in-person visits. However, vaccine-hesitant individuals were less comfortable attending in-person and were significantly less likely to be comforted by clinic interventions, such as masking. Hesitant and unhesitant groups trusted doctors or medical professionals most for their source of COVID-19 information.

Conclusions

Urogynecology patients mirror the general older population's COVID-19 vaccination attitudes, with distinct differences between hesitant and unhesitant groups. Vaccine-hesitant subjects appear less comfortable coming to in-person visits and less comforted by possible interventions, posing a difficult obstacle for clinics to overcome. High levels of patient trust suggest healthcare providers can play a crucial role in encouraging COVID-19 vaccination and combating misinformation.

Understanding Reasons for Vaccination Hesitancy and Implementing Effective Countermeasures: An Online Survey of Individuals Unvaccinated against COVID-19

This online survey of unvaccinated people living in Japan aimed to identify the reasons for declining vaccination and to develop effective countermeasures. We conducted a hierarchical class analysis to classify participants, examine factors influencing their classification, and provide the information they needed about coronavirus disease 2019 (COVID-19) and trusted sources of COVID-19 information for each group. A total of 262 participants were classified into three groups: Group 1 with no specific reason (28 participants, 10.69%); Group 2 with clear concerns about trust in the vaccine (85 participants, 32.44%), and Group 3 with attitudinal barriers, such as distrust of the vaccine and complacency towards COVID-19, and structural barriers, such as vaccination appointments (149 participants, 56.87%). For each group, females tended to be classified in Group 2 more than Group 1 (Odds ratio (OR) [95% confidential intervals (95%CI)] = 1.64 (0.63 to 2.66), p = 0.001) and in Group 3 more than Group 1 (OR [95%CI] = 1.16 (0.19 to 2.12), p = 0.019). The information that the participants wanted to know about COVID-19 was different among each group (Safety: p < 0.001, Efficacy: p < 0.001, Genetic effects: p < 0.001). Those who did not receive the COVID-19 vaccine also had lower influenza vaccination coverage (8.02%). Additionally, 38 participants (14.50%) were subject to social disadvantages because they had not received the COVID-19 vaccine. Countermeasures should be carefully tailored according to the target population, reasons for hesitancy, and specific context. The findings of this study may help develop individualized countermeasures to address vaccine hesitancy.

Exploring Hesitancy, Motivations, and Practical Issues for COVID-19 Vaccination Among Vaccine-Hesitant Adopter Parents Using the Increasing Vaccination Model

INTRODUCTION

COVID-19 vaccination coverage among children remains low, and many parents report being hesitant to get their children vaccinated. This study explores factors influencing hesitancy and the facilitators that helped hesitant adopter parents choose to vaccinate their children against COVID-19 despite their hesitancy.

METHOD

We use a qualitative descriptive design with individual interviews (n = 20) to explore COVID-19 vaccine hesitancy and facilitators of vaccination among hesitant adopter parents. The Increasing Vaccination Model domains (thoughts and feelings, social processes, and practical issues) provided the framework for initial coding, and the research team identified nine emergent themes.

RESULTS

Findings document the factors influencing hesitancy and the facilitators motivating COVID-19 vaccination among hesitant adopter parents.

DISCUSSION

Findings fill the gap in the literature by providing hesitant adopters' lived experience, perspectives on vaccine hesitancy, and the influential factors that helped participants overcome their hesitancy and choose to vaccinate their children against COVID-19.

Social Processes and COVID-19 Vaccination of Children of Hesitant Mothers

OBJECTIVE

Investigate relationships between pediatric COVID-19 vaccination and social processes of healthcare provider recommendations and school encouragement to provide insights into social processes that may support pediatric COVID-19 vaccination among hesitant mothers.

METHODS

We analyzed survey data from a subsample (n = 509) of vaccine-hesitant mothers to child patients (ages 2 to 17) in regional clinics across Arkansas. Data were collected between September 16th and December 6th, 2022. Full information maximum likelihood multivariable logistic regression was conducted to evaluate associations with pediatric COVID-19 vaccination.

RESULTS

Adjusted odds of pediatric COVID-19 vaccination were more than three times greater when a child's healthcare provider recommended vaccination compared to when they did not (aOR = 3.52; 95% CI[2.06, 6.01]). Adjusted odds of pediatric COVID-19 vaccination were 85% greater when a child's school encouraged parents to vaccinate compared to when the school did not (aOR = 1.85; 95% CI[1.13, 3.03]).

CONCLUSIONS

For pediatric COVID-19 vaccination, having a personal healthcare provider is not significantly different from having no personal healthcare provider if they do not recommend the child be vaccinated.

PRACTICE IMPLICATIONS

Clinical and public health interventions should consider social processes of healthcare provider recommendations and school encouragement.

"Every Time It Comes Time for Another Shot, It's a Re-Evaluation": A Qualitative Study of Intent to Receive COVID-19 Boosters among Parents Who Were Hesitant Adopters of the COVID-19 Vaccine

COVID-19 vaccine coverage remains low for US children, especially among those living in rural areas and the Southern/Southeastern US. As of 12 September 2023, the CDC recommended bivalent booster doses for everyone 6 months and older. Emerging research has shown an individual may be vaccine hesitant and also choose to receive a vaccine for themselves or their child(ren); however, little is known regarding how hesitant adopters evaluate COVID-19 booster vaccinations. We used an exploratory qualitative descriptive study design and conducted individual interviews with COVID-19 vaccine-hesitant adopter parents (n = 20) to explore COVID-19 parental intentions to have children receive COVID-19 boosters. Three primary themes emerged during the analysis: risk, confidence, and intent, with risk assessments from COVID-19 and COVID-19 vaccine confidence often related to an individual parent's intent to vaccinate. We also found links among individuals with persistent concerns about the COVID-19 vaccine and low COVID-19 vaccine confidence with conditional and/or low/no intent and refusal to receive recommended boosters for children. Our findings suggest that healthcare providers and public health officials should continue making strong recommendations for vaccines, continue to address parental concerns, and provide strong evidence for vaccine safety and efficacy even among the vaccinated.

Vaccine hesitancy and hesitant adoption among nursing students in Texas

Background

As the state facing the second-largest nursing workforce shortage in the U.S. and low vaccination rates among residents early in the pandemic, Texas provided a unique opportunity to examine vaccine hesitancy and hesitant adoption among nursing students in an environment where state-level executive orders prohibited mandatory vaccinations.

Methods

The purpose of this study was to describe the level of vaccine hesitancy and hesitant adoption among nursing students in the state of Texas. We used a convenient, opt-in, online survey of nursing students conducted between mid-April and mid-June 2022. The survey was distributed to all pre-licensure nursing programs in Texas.

Results

The majority of survey respondents (n = 599) were between the ages of 18-28 (68 %), female (88 %) and white (57 %). Most received at least one dose of the COVID-19 vaccination (84 %). Of those receiving the vaccine, a high proportion (82 %) were identified as hesitant adopters. Respondents cited concerns about side effects (57 %) most frequently as the reason for vaccine hesitancy.

Conclusion

Given the worldwide nursing shortage, factors potentially impacting the future workforce, such as vaccine hesitancy and hesitant adoption, must be closely monitored. More research is needed to understand the concerns of nursing students and the motivations of hesitant and non-hesitant adopters.

Relationship between vaccine hesitancy and vaccination behaviors: Systematic review and meta-analysis of observational studies

BACKGROUND

Vaccination is crucial for prevention of infectious diseases, and identification of the impact of vaccine hesitancy on vaccination programs is crucial for early intervention and formulation of policies to alleviate vaccine hesitancy. The aim of this systematic review was to explore the relationship between vaccine hesitancy and negative vaccination behavior globally.

METHODS

We searched for observational studies in various databases. We conducted a meta-analysis using pooled odds ratios (OR) and 95 % confidence intervals (CI), performed meta regression and subgroup analysis to explore the role factors such as location and individual characteristics on the association between vaccine hesitancy and vaccination behavior.

RESULTS

A total of 46 articles were included in systematic analysis and 34 articles were included in the meta-analysis. The systematic analysis comprised 162,601 samples, whereas the meta-analysis included 147,554 samples. The meta-analysis showed that a higher rate of vaccine hesitancy was associated with an increased likelihood of adverse vaccination behaviors (all adverse behaviors: OR = 1.50, 95 % CI, 1.33-1.70, P < 0.001; unvaccinated: OR = 1.48, 95 % CI, 1.29-1.70, P < 0.001; vaccine delay: OR = 2.61, 95 % CI, 1.97-3.44, P < 0.001). The meta-regression results indicated that the heterogeneity observed was mainly from sample selection methods, age of vaccinees and the health status of participants. The results showed that parents of minor vaccinees or without high-risk health status had a higher association between vaccine hesitancy and vaccine uptake compared with populations exposed to higher health risks or adult vaccinees.

CONCLUSION

The findings provide evidence on the association between vaccine hesitancy and adverse vaccination behaviors. The results showed that these population-specific factors should be considered in future research, and during formulation of interventions and implementation of policies to improve vaccination uptake.

Understanding HPV Vaccine Hesitancy and What Helped Hesitant Adopter Parents Have Their Children Vaccinated Despite Their Hesitancy

INTRODUCTION

One out of four parents reported HPV vaccine hesitancy; however, little is known about HPV vaccine-hesitant parents who vaccinate their children (e.g., hesitant adopters).

METHOD

We use individual interviews (n = 8) to explore hesitancy and facilitators for overcoming hesitancy among hesitant adopter parents. We drew a priori codes from the Increasing Vaccination Model domains and identified seven emergent secondary themes.

RESULTS

Understandable information about safety, side effects, and effectiveness could address HPV vaccine hesitancy. Health care professionals, family, friends, and coworkers were trusted vaccine and vaccination information sources. The study documents the lack of access to HPV vaccines with established health care providers as a barrier to vaccination.

DISCUSSION

This is the first study of hesitant adopter parents that expands our understanding of factors driving HPV vaccination among them. Study insights can inform future efforts to increase HPV vaccine uptake among the hesitant.

COVID-19 Vaccine Confidence Mediates the Relationship between Health Literacy and Vaccination in a Diverse Sample of Urban Adults

We sought to analyze the relationship between health literacy, confidence in COVID-19 vaccines, and self-reported vaccination. We hypothesized that the relationship between health literacy and vaccination would be mediated by vaccine confidence. We recruited (N = 271) English- and Spanish-speaking adults in Boston and Chicago from September 2018 to September 2021. We performed a probit mediation analysis to determine if confidence in COVID-19 vaccines and health literacy predicted self-reported vaccination. We hypothesized that the relationship between health literacy and vaccination would be mediated by vaccine confidence. Participants were on average 50 years old, 65% female, 40% non-Hispanic Black, 25% Hispanic, and 30% non-Hispanic White; 231 (85%) reported at least one COVID-19 vaccination. A higher mean vaccine confidence score (t = -7.9, p < 0.001) and higher health literacy (t = -2.2, p = 0.03) were associated with vaccination, but only vaccine confidence predicted vaccination in a multivariate model. Vaccine confidence mediated the relationship between health literacy and COVID-19 vaccination (mediated effects: 0.04; 95% CI [0.02, 0.08]). We found that using a simple tool to measure vaccine confidence identified people who declined or delayed COVID-19 vaccination in a diverse sample of adults with varying levels of health literacy. Simple short survey tools can be useful to identify people who may benefit from vaccine promotion efforts and evidence-based communication strategies.

Identifying Mental Health Literacy as a Key Predictor of COVID-19 Vaccination Acceptance among American Indian/Alaska Native/Native American People

BACKGROUND

This study examines how health literacy and mental health literacy associate with the willingness to receive a COVID-19 vaccination among American Indian/Alaska Native/Native American (AI/AN) people.

METHODS

The data were collected with an online Qualtrics survey in February 2021 (n = 563). A purposive snowball sampling strategy was used by sending recruitment flyers to colleagues and organizations who work with AI/AN communities to share with appropriate potential respondents. We performed linear regression analyses examining the relationships between the willingness to receive a COVID-19 vaccination and socio-demographic characteristics such as age, gender, education, health literacy, mental health literacy, self-rated physical and mental health status, worry about getting COVID-19, perceived COVID-19 susceptibility, and perceived COVID-19 severity.

RESULTS

Mental health literacy and health literacy predicted 30.90% and 4.65% of the variance (R2adjusted) in the willingness to receive a COVID-19 vaccine, respectively. After holding the self-rated physical/mental health status, worry about getting COVID-19, perceived susceptibility, perceived severity, health literacy, and socio-demographics constant, mental health literacy was still a strong predictor (b = 0.03, p < 0.001) for the willingness to receive a COVID-19 vaccine (model R2adjusted = 40.14%).

CONCLUSIONS

We identified mental health literacy as a substantial factor associated with the willingness to receive a COVID-19 vaccination among AI/AN respondents.

Correlates of COVID-19 vaccine coverage in Arkansas: Results from a weighted random sample survey

We assessed COVID-19 vaccination (≥1 dose) status as influenced by sociodemographic factors (i.e., age, gender, race/ethnicity, education, income, and parent or guardian status), healthcare provider recommendation, and personal vaccine hesitancy among Arkansas residents in October 2022. We asked: did the likelihood of vaccination differ across sociodemographic groups of Arkansas during this period of the pandemic? Is COVID-19 vaccination associated with recommendations from healthcare providers and/or COVID-19 vaccine hesitancy? We analyzed data from a random sample survey of adults in Arkansas (N = 2,201). Three in four adults self-reported vaccination against COVID-19 in October 2022. We found both positive and negative association between COVID-19 vaccination and age, gender, race/ethnicity, education, income, healthcare provider recommendation, and vaccine hesitancy. We highlight racial differences in COVID-19 coverage and the higher odds of COVID-19 vaccination among Black adults compared to White adults in particular, which has broad implications for the study of vaccine coverage and hesitancy. We also discuss implications of our findings regarding healthcare provider recommendations to be vaccinated against COVID-19.

COVID-19 Booster Uptake: Are Hesitant Adopters Less Likely to Get a Booster Shot Than Nonhesitant Adopters?

The main objective of this study was to assess whether hesitancy toward receiving the initial COVID-19 vaccine was associated with uptake of the COVID-19 booster several months after it became available to all US adults. We ask whether hesitancy toward the initial COVID-19 vaccine was significantly associated with lower odds of COVID-19 booster uptake among adults. We test this association within the context of the highly rural state of Arkansas. By January 2022, the US had set a global record of nearly 1 million daily cases. The purpose of this study was to advance our understanding of vaccine hesitancy among those who have already received a dose of the COVID-19 vaccine and how that hesitancy may shape COVID-19 booster uptake. We analyzed data from a random sample survey of Arkansan adults (N = 2,201) between March 1 and March 28, 2022 and constrained our analytical sample to those who had received a vaccine (N = 1,649). Nearly two-thirds of vaccinated Arkansas residents had received a COVID-19 booster. Hesitancy was common even among vaccinated individuals and was significantly associated with reduced odds of COVID-19 booster uptake, even after controlling for other factors. Findings provide further support for conceptualizing vaccine hesitancy as an attitude related to-but separate from-the behavior of vaccination, as opposed to conflating vaccination with being nonhesitant. Public health interventions aimed at increasing COVID-19 booster uptake should pay attention to vaccine hesitancy indicated at the initiation of the series and should not ignore the vaccinated as an important population to target for intervention.

Key Conversations and Trusted Information Among Hesitant Adopters of the COVID-19 Vaccine

COVID-19 vaccines effectively protect against COVID-19-related hospitalization or death, and 67.1% of the US population is fully vaccinated. However, the disparity in COVID-19 vaccination persists among minority and rural populations who often report greater hesitancy about COVID-19 vaccines. This exploratory study aimed to understand and document trusted sources of information about the COVID-19 vaccine among a diverse sample of hesitant adopters with in-depth interviews. Participants (n = 21) described how information from trusted sources influenced their decision to get a COVID-19 vaccine despite being hesitant. Participants reported health care professionals, family members, friends, coworkers, community leaders, public health experts, government officials, and the mainstream media as trusted sources of information about the COVID-19 vaccines. Participants discussed obtaining trusted information from multiple modes, including direct conversations with trusted messengers and public health communications from public influencers who reinforced the information shared with trusted messengers. Notably, participants discussed having multiple conversations with trusted messengers during their decision-making process, and these trusted messengers often facilitated the participants' vaccination process. Study findings highlight the continued need for clear, understandable information about vaccine side effects, safety, and efficacy to address concerns that contribute to vaccine hesitancy.

Understanding Vaccination Among Hesitant Adopters of the COVID-19 Vaccine Using the Increasing Vaccination Model

The coronavirus disease (COVID-19) was the third leading cause of death in 2021 in the United States and has led to historic declines in life expectancy for Americans. While vaccination is an effective mitigation strategy for COVID-19, vaccine hesitancy remains a major barrier to individual and population-level protection. An emerging literature on hesitant adopters of COVID-19 vaccines highlights co-occurrence of hesitancy and vaccine uptake as an understudied phenomenon, with the potential to provide insight into factors that lead hesitant individuals to become vaccinated despite their hesitancy. We use qualitative interviews among hesitant adopters in Arkansas to examine vaccine hesitancy among this understudied group. Drawing on the Increasing Vaccination Model, we find that the most frequently reported motivations of hesitant adopters were within the domain of social processes, pointing to a critical focal point for targeted health communications intervening in this domain (e.g. social norms, social networks, and altruistic behavior). We find that recommendations from health care workers (HCWs) other than physicians/providers may serve as an effective influence to vaccinate. We also demonstrate negative effects of low provider and HCW confidence and weak recommendations on motivations to vaccinate among individuals expressing vaccine hesitancy. Additionally, we find individual information-seeking behaviors among hesitant adopters bolstered confidence in the efficacy of the COVID-19 vaccine. Based on these findings, clear, accessible, and authoritative health communication has a role in combatting the COVID-19 misinformation/disinformation infodemic.

Hesitant adopters: COVID-19 vaccine hesitancy among diverse vaccinated adults in the United States

Background

Despite the United States (US) having an abundant supply of COVID-19 vaccines, vaccination rates lag behind other high-income countries, suggesting that vaccine hesitancy and attitudes play a greater role in public health measures than pure supply and access. With the acknowledgment that vaccination attitudes and status may or may not be correlated, this study examined COVID-19 vaccine hesitancy among vaccinated US adults by asking: 1) What is the prevalence of COVID-19 vaccine hesitancy among the vaccinated? 2) Does COVID-19 vaccine hesitancy vary across sociodemographic characteristics? 3) Does COVID-19 vaccine hesitancy vary by healthcare access and influenza vaccination over the past 5 years?

Methods

Data were collected through an online survey of 2022 US adults with a final analytic sample of 1383 vaccinated respondents.

Results

Overall, 48.8% of vaccinated adults reported some level of hesitancy, while a slight majority reported they were "not at all hesitant". Younger respondents, women, and Black and American Indian or Alaska Native participants had greater adjusted odds of being more hesitant towards receiving the COVID-19 vaccine. Respondents who had a primary care physician had greater adjusted odds than those who did not have a primary care physician of being more hesitant towards receiving the COVID-19 vaccine.

Conclusions

This is the first population-based national sample study examining COVID-19 vaccine hesitancy among vaccinated individuals from subgroups of distinctive backgrounds in order to inform targeted strategies for reducing vaccine hesitancy. Findings can assist in efforts to increase vaccination rates and also decrease vaccine hesitancy at the national level.

Discovery of interconnected causal drivers of COVID-19 vaccination intentions in the US using a causal Bayesian network

Holistic interventions to overcome COVID-19 vaccine hesitancy require a system-level understanding of the interconnected causes and mechanisms that give rise to it. However, conventional correlative analyses do not easily provide such nuanced insights. We used an unsupervised, hypothesis-free causal discovery algorithm to learn the interconnected causal pathways to vaccine intention as a causal Bayesian network (BN), using data from a COVID-19 vaccine hesitancy survey in the US in early 2021. We identified social responsibility, vaccine safety and anticipated regret as prime candidates for interventions and revealed a complex network of variables that mediate their influences. Social responsibility's causal effect greatly exceeded that of other variables. The BN revealed that the causal impact of political affiliations was weak compared with more direct causal factors. This approach provides clearer targets for intervention than regression, suggesting it can be an effective way to explore multiple causal pathways of complex behavioural problems to inform interventions.

Factors associated with COVID-19 vaccination during June-October 2021: A multi-site prospective study

INTRODUCTION

Vaccine hesitancy presents a challenge to COVID-19 control efforts. To identify beliefs associated with delayed vaccine uptake, we developed and implemented a vaccine hesitancy survey for the COVID-19 Community Research Partnership.

METHODS

In June 2021, we assessed attitudes and beliefs associated with COVID-19 vaccination using an online survey. Self-reported vaccination data were requested daily through October 2021. We compared responses between vaccinated and unvaccinated respondents using absolute standardized mean differences (ASMD). We assessed validity and reliability using exploratory factor analysis and identified latent factors associated with a subset of survey items. Cox proportional hazards models and mediation analyses assessed predictors of subsequent vaccination among those initially unvaccinated.

RESULTS

In June 2021, 29,522 vaccinated and 1,272 unvaccinated participants completed surveys. Among those unvaccinated in June 2021, 559 (43.9 %) became vaccinated by October 31, 2021. In June, unvaccinated participants were less likely to feel "very concerned" about getting COVID-19 than vaccinated participants (10.6 % vs. 43.3 %, ASMD 0.792). Among those initially unvaccinated, greater intent to become vaccinated was associated with getting vaccinated and shorter time to vaccination. However, even among participants who reported no intention to become vaccinated, 28.5 % reported vaccination before study end. Two latent factors predicted subsequent vaccination-being 'more receptive' was derived from motivation to protect one's own or others' health and resume usual activities; being 'less receptive' was derived from concerns about COVID-19 vaccines. In a Cox model, both factors were partially mediated by vaccination intention.

CONCLUSION

This study characterizes vaccine hesitant individuals and identifies predictors of eventual COVID-19 vaccination through October 31, 2021. Even individuals with no intention to be vaccinated can shift to vaccine uptake. Our data suggest factors of perceived severity of COVID-19 disease, vaccine safety, and trust in the vaccine development process are predictive of vaccination and may be important opportunities for ongoing interventions.

Reaching late adopters: factors influencing COVID-19 vaccination of Marshallese and Hispanic adults

BACKGROUND

Marshallese and Hispanic communities in the United States have been disproportionately affected by COVID-19. Identifying strategies to reach late vaccine adopters is critical for ongoing and future vaccination efforts. We utilized a community-engaged approach that leveraged an existing community-based participatory research collaborative of an academic healthcare organization and Marshallese and Hispanic faith-based organizations (FBO) to host vaccination events.

METHODS

Bilingual Marshallese and Hispanic study staff conducted informal interviews with 55 participants during the 15-minute post-vaccination observation period and formal semi-structured interviews with Marshallese (n = 5) and Hispanic (n = 4) adults post-event to assess the implementation of community vaccine events at FBOs, with a focus on factors associated with the decision to attend and be vaccinated. Formal interview transcripts were analyzed using thematic template coding categorized with the socio-ecological model (SEM). Informal interview notes were coded via rapid content analysis and used for data triangulation.

RESULTS

Participants discussed similar factors influencing attitudes and behaviors toward receiving the COVID-19 vaccine. Themes included: (1) intrapersonal - myths and misconceptions, (2) interpersonal - protecting family and family decision-making, (3) community - trust of community location of events and influence of FBO members and leaders, (4) institutional - trust in a healthcare organization and bilingual staff, and (5) policy. Participants noted the advantages of vaccination delivery at FBOs, contributing to their decision to attend and get vaccinated.

CONCLUSIONS

The following strategies may improve vaccine-related attitudes and behaviors of Marshallese and Hispanic communities not only for the COVID-19 vaccine but also for other preventive vaccinations: 1) interpersonal-level - develop culturally-focused vaccine campaigns targeting the family units, 2) community-level - host vaccination events at convenient and/or trusted locations, such as FBOs, and engage community and/or FBO formal or lay leaders as vaccine ambassadors or champions, and 3) institutional-level - foster trust and a long-term relationship with the healthcare organization and provide bilingual staff at vaccination events. Future research would be beneficial to investigate the effects of replicating these strategies to support vaccine uptake among Marshallese and Hispanic communities.

Broad perspectives in understanding vaccine hesitancy and vaccine confidence: an introduction to the special issue

The World Health Organization has designated vaccine hesitancy and vaccine confidence among the most pressing issues in global health. The COVID-19 pandemic has made vaccine hesitancy and vaccine confidence particularly salient and urgent. The purpose of this special issue is to highlight a broad range of perspectives on these critical issues. We have included a total of 30 papers that address issues related to vaccine hesitancy and vaccine confidence across multiple levels of the Socio-Ecological Model. We have organized the empirical papers into the following sections: individual-level beliefs, minority health and health disparities, social media and conspiracy beliefs, and interventions. In addition to the empirical papers, three commentaries are included in this special issue.

Healthcare Access and Experiences of Racial Discrimination as Predictors of General Vaccine Hesitancy

The literature regarding vaccine hesitancy is limited to specific vaccines rather than general vaccine hesitancy. No studies have examined the relationship of general vaccine hesitancy to healthcare access and experiences of racial discrimination. This study fills gaps by examining: (1) socio-demographic factors; (2) associations between healthcare access; and (3) experiences with racial discrimination and general vaccine hesitancy. Survey data were obtained from 2022 US adults from 7 September to 3 October 2021. Racial and ethnic minority populations were oversampled. Age, gender, race, and education were predictors of vaccine hesitancy. Asian respondents had less than two-thirds the odds of being vaccine hesitant. Healthcare access was associated with vaccine hesitancy. Not having health insurance coverage, not having a primary care provider, and not seeing a provider for a routine check-up in the past two years were associated with higher vaccine hesitancy. For every one-point increase in racial discrimination score (0-45), the odds of being more vaccine hesitant increased by a factor of 1.03. The findings demonstrate that policy, systems, and environmental factors are critical to addressing vaccine hesitancy. Given the associations between vaccine hesitancy and racial discrimination and healthcare access, more attention should be given to inequities in the healthcare systems in order to address vaccine hesitancy.

Factors Associated With Marshallese and Hispanic Adults' Willingness to Receive a COVID-19 Booster Dose

INTRODUCTION/OBJECTIVES

New variants of the SARS-CoV-2 virus that causes COVID-19 will continue to develop and spread globally. The Omicron variant identified in November 2021 has many lineages. Variants spread quickly and can infect previously vaccinated individuals, prompting the Centers for Disease Control and Prevention to update vaccination recommendations. While ~230 million Americans received the initially-recommended vaccine sequence, booster uptake has been much lower; less than half of fully vaccinated individuals report receiving a booster. Racial disparities also mark patterns of COVID-19 vaccination booster uptake. This study explored willingness and motivations to get a COVID-19 booster among a diverse sample of participants.

METHODS

We used convenience sampling to recruit participants 18 years of age or older who attended a community vaccine event. We conducted informal interviews during the recommended 15-min post-vaccination wait time with 55 participants who attended vaccine events at Marshallese and Hispanic community locations and comprised the recruitment pool for individual interviews. Using a qualitative descriptive design, we conducted in-depth follow-up interviews with 9 participants (Marshallese n = 5, Hispanic n = 4) to explore willingness and motivations to get boosted. We used rapid thematic template analysis to review informal interview summaries and formal interviews. The research team resolved data discrepancies by consensus.

RESULTS

Participants reported high willingness to get boosted, especially if boosters were recommended in the future to protect against serious illness and mitigate the spread of COVID-19. This finding underscores how essential including recommendations to get a COVID-19 booster from trusted sources in health messaging and educational campaigns may be for increasing booster uptake. Participants described their preference for receiving future COVID-19 boosters, reporting that they would attend similar vaccine events, especially those held at faith-based organizations and facilitated by the same community partners, community health workers, and research staff. This finding shows how community engagement can overcome barriers to vaccination (ie, transportation, language, and fear of discrimination) by providing services in preferred community locations with trusted community partners.

CONCLUSIONS

Findings document high willingness to get a COVID-19 booster, emphasize the role of recommendations from trusted sources in motivating booster uptake, and highlight the importance of community engagement to address disparities in vaccination coverage and reach.

When good messages go wrong: Perspectives on COVID-19 vaccines and vaccine communication from generally vaccine accepting individuals in Canada

Vaccines are one of the most important and successful public health interventions to reduce the spread of infectious diseases. However, unlike childhood diseases and routine vaccines, COVID-19 is a novel threat, and COVID-19 vaccines may elicit specific anxieties. Through focus groups, we examine the concerns and attitudes toward the COVID-19 vaccine expressed by individuals who accept routine vaccinations in Canada. We also conducted a pre-focus group survey to document participant attitudes towards vaccines in general. While most participants had received at least one dose of the COVID-19 vaccine or had the intention to get it, many had concerns. First, participants felt anxious about the quick development and approval of the vaccines, even if they recognized that the vaccines have undergone clinical trials. Second, participants felt confused about shifting public health guidelines regarding vaccine safety, changing the interval between doses, and mixing different vaccine brands. Finally, participants said they felt abandoned when deciding whether to get vaccinated or not. People who generally accept vaccines expressed concerns about COVID-19 vaccines, mostly related to the inevitable uncertainties of a new vaccine (i.e. novelty, safety, mandates, etc.). COVID-19 vaccine hesitancy, understood as concerns about the novelty of a vaccine and the rapid implementation of it, could be useful for understanding questioning attitudes towards COVID-19 vaccines from people who accept routine vaccinations. Understanding COVID-19 vaccine hesitancy can also provide valuable insights as booster doses are periodically needed and people may not be as accepting of these additional doses.

The vaccine hesitancy continuum among hesitant adopters of the COVID-19 vaccine

Vaccination is a strategy for mitigating the impact of coronavirus disease 2019 (COVID-19) at both the individual and population levels. Vaccine hesitancy is identified as a significant threat to global health by the World Health Organization (WHO). Vaccine hesitancy has been theorized as a continuum encompassing a range of attitudes, beliefs, emotional orientations, ideologies, and health-seeking behaviors. Individuals who received the COVID-19 vaccine but also indicated some level of hesitancy about vaccination, or "hesitant adopters," remain an understudied group. This study uses a qualitative descriptive design to understand motivations to receive the COVID-19 vaccine among hesitant adopters at various self-reported levels of hesitancy. We conducted interviews with hesitant adopters (n = 49) to analyze the elements of vaccine hesitancy corresponding to reported levels of COVID-19 vaccine hesitancy (i.e., "little hesitant," "somewhat hesitant," and "very hesitant"). Concerns about side effects are shared across the continuum but are articulated differently at each level of hesitancy. The "little hesitant" relate fears of side effects to their health and a lack of clear information to inform their health decision making, whereas the "very hesitant" articulate the risks of side effects within the frame of conspiracies related to the development, approval, and economics of the COVID-19 vaccine. Additionally, conspiracy theories generally increase in salience across the continuum, with the "very hesitant" reporting conspiracy theories as the most salient element of vaccine hesitancy. This research presents opportunities for developing targeted interventions for different levels of vaccine hesitancy.

Factors influencing COVID-19 vaccine decision-making among hesitant adopters in the United States

Increasing COVID-19 vaccine uptake is crucial to managing the endemic. In this qualitative study, we examine factors influencing the decision-making process of COVID-19 hesitant adopters - those who reported some level of hesitancy and are vaccinated. Using interviews with 49 participants, we documented multiple factors influencing the decision-making process to get the COVID-19 vaccine among a racially and ethnically diverse sample of hesitant adopters in the US. Participants described influences related to sociocultural context and personal and group influences, which affected their decision to get the COVID-19 vaccine despite being hesitant. We find politics, culture, healthcare professionals, employment, vaccine attitudes and beliefs, social networks, and the media influence the decision to get vaccinated. Our findings provide nuanced and in-depth information in their own words. This study expands on prior literature on COVID-19 vaccine hesitancy, especially among hesitant adopters. These findings can inform future interventions and research targeting vaccine-hesitant populations to increase vaccine uptake.

COVID-19 vaccine hesitancy and racial discrimination among US adults

Vaccination is a critical preventive measure to reduce COVID-19 health risks. We utilize full information maximum likelihood (FIML) logistic regression to analyze COVID-19 vaccine hesitancy in a national sample of United States (US) adults (N = 2,022). Online survey data was collected between September 7th and October 3rd, 2021. Before weighting, the racial composition of the sample was as follows: Asian American (15.0 %), Black/African American (20.0 %), Hispanic/Latino (20.0 %), American Indian or Alaska Native (12.6 %), Native Hawaiian or Pacific Islander (12.5 %), and White (20.0 %). Informed by the Increasing Vaccination Model (IVM), we assessed the relationship between COVID-19 vaccine hesitancy and experiences of racial discrimination (Krieger's 9-item measure). Odds of COVID-19 vaccine hesitancy were greater for most younger age groups, women (OR = 1.96; 95 % CI[1.54, 2.49]), Black/African American respondents (OR = 1.68; 95 % CI[1.18, 2.39]), those with a high school education or less (OR = 1.46; 95 % CI[1.08, 1.98]), Independent (OR = 1.77; 95 % CI[1.34, 2.35]) or Republican political affiliation (OR = 2.69; 95 % CI[1.92, 3.79]), and prior COVID-19 infection (OR = 1.78; 95 % CI[1.29, 2.45]). Odds of COVID-19 vaccine hesitancy were 1.04 greater for every-one unit increase in lifetime experiences of racial discrimination (95 % CI[1.02, 1.05]). Odds of COVID-19 vaccine hesitancy were lower for Asian American respondents (OR = 0.682; 95 % CI[0.480, 0.969]), and those who had a primary care doctor had reduced odds of COVID-19 vaccine hesitancy (OR = 0.735; 95 % CI[0.542, 0.998). Our primary finding provides support for a link between experiences of racial discrimination and hesitancy towards a COVID-19 vaccine among US adults. We discuss implications for public health officials and future research.

The Correlates & Public Health Consequences of Prospective Vaccine Hesitancy among Individuals Who Received COVID-19 Vaccine Boosters in the U.S

Supplemental “booster” vaccines may prove vital in combating variant waves of endemic COVID-19. Given relatively low levels of booster vaccine uptake, Americans’ willingness to receive a second booster shot is unclear. In a demographically representative survey of N = 3950 US adults (limited to a “boosted” subsample of N = 1551 who had not yet received a second booster), 49% [95% CI: 47, 51] of Americans report having received an initial booster shot, while just 34% [33, 36] report that they would be “very likely” to do so again. Concerns about missing work to vaccinate (−10%; B = 0.53, p = 0.05) and being unconvinced that additional boosters will be necessary (−47%; B = 2.24, p < 0.01) are significantly and negatively associated with being very likely to receive a second COVID-19 booster. These findings can help inform discussions about policies aimed at increasing vaccine uptake in the U.S., and broaden researchers’ understanding of vaccine reluctance among those who might otherwise hold positive views toward vaccination.

The Association between Socio-Demographics and Mental Distress Following COVID-19 Vaccination—Mediation of Vaccine Hesitancy

The COVID-19 vaccine has been administered to over 200 countries and regions. With the unprecedented vaccination scale and speed, vaccination correlated mental health issues should be paid precise attention to. This study aims to assess the association between socio-demographic factors and mental health following vaccination and to analyze the mediation effect of vaccine hesitancy. This study recruited 2112 individuals who took two doses of the COVID-19 vaccine in Shanghai. Structural equation modeling was performed to assess factors associated with anxiety and depression of the vaccinated individuals and the underlying mechanism. The results yielded that vaccine hesitancy partially mediated/suppressed the effect from gender and employment status to anxiety/depression and fully mediated the effects from education to anxiety/depression. This study advanced the understanding of mental health disparity among different socio-demographic groups after vaccination and the impact of vaccine hesitancy on the vaccinated population’s mental health. The finding offered insights into the possible mental vulnerability of people holding a hesitant attitude before vaccination and suggested that vaccine hesitancy played a crucial role in people’s mental health after vaccination. Health promotion programs can target vaccine hesitancy to prevent unfavorable mental health consequences among specific populations.

Hesitant adopters: An examination of hesitancy among adults in Arkansas who have taken the COVID-19 vaccine

Recent research suggests people who report vaccine hesitancy may still get vaccinated; however, little is known about hesitancy among those who chose to vaccinate. The current study focused on individuals who received the coronavirus disease 2019 (COVID-19) vaccine despite their hesitancy, whom we refer to as "hesitant adopters." With the understanding that vaccine attitudes and vaccine behaviors may or may not be correlated, we examined the prevalence of COVID-19 vaccine hesitancy among those who have been vaccinated, how COVID-19 vaccine hesitancy varies across sociodemographic groups, and how COVID-19 vaccine hesitancy relates to other factors (prior health care access and influenza vaccination behavior over the past 5 years). Random digit dialing of telephone landlines and cell phones was used to contact potential survey respondents, rendering a sample of 1500 Arkansan adults. Approximately one-third of those who received a COVID-19 vaccine also reported some level of hesitancy. Among hesitant adopters, 5.3% said they were "very hesitant," 8.8% said they were "somewhat hesitant," and 17.1% said they were "a little hesitant." Black/African American and Hispanic/Latinx respondents reported more hesitancy than White respondents, and female respondents reported greater hesitancy compared to male respondents. Greater hesitancy was associated with non-metro/rural residence, forgoing health care due to cost, and lower influenza vaccination rates over the past 5 years. Findings suggest those who are hesitant may get vaccinated despite their hesitancy, illustrating the complexity of vaccination behaviors. Prevalence of hesitancy among the vaccinated has implications for communication strategies in vaccine outreach programs and may help to reduce stigmatization of hesitant adopters.

Higher Collective Responsibility, Higher COVID-19 Vaccine Uptake, and Interaction with Vaccine Attitude: Results from Propensity Score Matching

Providing both personal and social benefits, vaccination may be motivated by collective responsibility (CR). Some previous studies have indicated the relationship between CR and vaccination but could not exclude confounding bias and had little knowledge about the boundary conditions. This study aimed to examine the association between CR and COVID-19 vaccine uptake and its boundary conditions in an extended version of the theory of planned behavior. A cross-sectional survey with 608 participants from six tourism satellite industries in Macao was conducted from 28 July 2021 to 20 August of 2021. Respondentss in CR-lower and CR-higher groups were 1:1 paired using propensity score matching (PSM) to control the potential confounding factors. Results showed participants in the CR-higher group reported significantly higher COVID-19 vaccine uptake than those in the CR-lower group (64.7% vs. 49.7%, p = 0.005). Multivariate logistic regression results indicated a positive association between CR and COVID-19 vaccine uptake (p = 0.012, OR = 2.070, 95% CI= 1.174 to 3.650) and its interaction effect with COVID-19 vaccine attitude (p = 0.019, OR = 0.922, 95% CI = 0.861 to 0.987). Spotlight analysis further illustrated that CR was more effective among individuals with a more negative COVID-19 vaccine attitude. These findings may help promote understanding of vaccine hesitancy, and hence optimize vaccination communication strategies during the COVID-19 pandemic.

Recording of 'COVID-19 vaccine declined': a cohort study on 57.9 million National Health Service patients' records in situ using OpenSAFELY, England, 8 December 2020 to 25 May 2021

BackgroundPriority patients in England were offered COVID-19 vaccination by mid-April 2021. Codes in clinical record systems can denote the vaccine being declined.AimWe describe records of COVID-19 vaccines being declined, according to clinical and demographic factors.MethodsWith the approval of NHS England, we conducted a retrospective cohort study between 8 December 2020 and 25 May 2021 with primary care records for 57.9 million patients using OpenSAFELY, a secure health analytics platform. COVID-19 vaccination priority patients were those aged ≥ 50 years or ≥ 16 years clinically extremely vulnerable (CEV) or 'at risk'. We describe the proportion recorded as declining vaccination for each group and stratified by clinical and demographic subgroups, subsequent vaccination and distribution of clinical code usage across general practices.ResultsOf 24.5 million priority patients, 663,033 (2.7%) had a decline recorded, while 2,155,076 (8.8%) had neither a vaccine nor decline recorded. Those recorded as declining, who were subsequently vaccinated (n = 125,587; 18.9%) were overrepresented in the South Asian population (32.3% vs 22.8% for other ethnicities aged ≥ 65 years). The proportion of declining unvaccinated patients was highest in CEV (3.3%), varied strongly with ethnicity (black 15.3%, South Asian 5.6%, white 1.5% for ≥ 80 years) and correlated positively with increasing deprivation.ConclusionsClinical codes indicative of COVID-19 vaccinations being declined are commonly used in England, but substantially more common among black and South Asian people, and in more deprived areas. Qualitative research is needed to determine typical reasons for recorded declines, including to what extent they reflect patients actively declining.

Addressing vaccine hesitancy and resistance for COVID-19 vaccines

The COVID-19 vaccine rollout has had various degrees of success in different countries. Achieving high levels of vaccine coverage is key to responding to and mitigating the impact of the pandemic on health and aged care systems and the community. In many countries, vaccine hesitancy, resistance, and refusal are emerging as significant barriers to immunisation uptake and the relaxation of policies that limit everyday life. Vaccine hesitancy/ resistance/ refusal is complex and multi-faceted. Individuals and groups have diverse and often multiple reasons for delaying or refusing vaccination. These reasons include: social determinants of health, convenience, ease of availability and access, health literacy understandability and clarity of information, judgements around risk versus benefit, notions of collective versus individual responsibility, trust or mistrust of authority or healthcare, and personal or group beliefs, customs, or ideologies. Published evidence suggests that targeting and adapting interventions to particular population groups, contexts, and specific reasons for vaccine hesitancy/ resistance may enhance the effectiveness of interventions. While evidence regarding the effectiveness of interventions to address vaccine hesitancy and improve uptake is limited and generally unable to underpin any specific strategy, multi-pronged interventions are promising. In many settings, mandating vaccination, particularly for those working in health or high risk/ transmission industries, has been implemented or debated by Governments, decision-makers, and health authorities. While mandatory vaccination is effective for seasonal influenza uptake amongst healthcare workers, this evidence may not be appropriately transferred to the context of COVID-19. Financial or other incentives for addressing vaccine hesitancy may have limited effectiveness with much evidence for benefit appearing to have been translated across from other public/preventive health issues such as smoking cessation. Multicomponent, dialogue-based (i.e., communication) interventions are effective in addressing vaccine hesitancy/resistance. Multicomponent interventions that encompasses the following might be effective: (i) targeting specific groups such as unvaccinated/under-vaccinated groups or healthcare workers, (ii) increasing vaccine knowledge and awareness, (iii) enhanced access and convenience of vaccination, (iv) mandating vaccination or implementing sanctions against non-vaccination, (v) engaging religious and community leaders, (vi) embedding new vaccine knowledge and evidence in routine health practices and procedures, and (vii) addressing mistrust and improving trust in healthcare providers and institutions via genuine engagement and dialogue. It is universally important that healthcare professionals and representative groups, as often highly trusted sources of health guidance, should be closely involved in policymaker and health authority decisions regarding the establishment and implementation of vaccine recommendations and interventions to address vaccine hesitancy.

Serious Underlying Medical Conditions and COVID-19 Vaccine Hesitancy: A Large Cross-Sectional Analysis from Australia

As COVID-19 vaccinations became available and were proven effective in preventing serious infection, uptake amongst individuals varied, including in medically vulnerable populations. This cross-sectional multi-site study examined vaccine uptake, hesitancy, and explanatory factors amongst people with serious and/or chronic health conditions, including the impact of underlying disease on attitudes to vaccination. A 42-item survey was distributed to people with cancer, diabetes, or multiple sclerosis across ten Australian health services from 30 June to 5 October 2021. The survey evaluated sociodemographic and disease-related characteristics and incorporated three validated scales measuring vaccine hesitancy and vaccine-related beliefs generally and specific to their disease: the Oxford COVID-19 Vaccine Hesitancy Scale, the Oxford COVID-19 Vaccine Confidence and Complacency Scale and the Disease Influenced Vaccine Acceptance Scale-Six. Among 4683 participants (2548 [54.4%] female, 2108 [45.0%] male, 27 [0.6%] other; mean [SD] age, 60.6 [13.3] years; 3560 [76.0%] cancer, 842 [18.0%] diabetes, and 281 [6.0%] multiple sclerosis), 3813 (81.5%) self-reported having at least one COVID-19 vaccine. Unvaccinated status was associated with younger age, female sex, lower education and income, English as a second language, and residence in regional areas. Unvaccinated participants were more likely to report greater vaccine hesitancy and more negative perceptions toward vaccines. Disease-related vaccine concerns were associated with unvaccinated status and hesitancy, including greater complacency about COVID-19 infection, and concerns relating to vaccine efficacy and impact on their disease and/or treatment. This highlights the need to develop targeted strategies and education about COVID-19 vaccination to support medically vulnerable populations and health professionals.

COVID-19 Vaccine Hesitancy and Experiences of Discrimination Among Black Adults

Early in the COVID-19 vaccine rollout, Black adults consistently reported more hesitancy than White adults, but few studies have examined variation in hesitancy among Black adults or its associations with racial discrimination. Data were collected from Black Arkansas residents age 18 and older (n = 350) between July 12^th and July 30^th, 2021, as part of a larger survey of Arkansans (N = 1500). Participants were recruited through random digit dialing of both landline and cell phones, with oversampling of Black and Hispanic residents. Respondents reported COVID-19 vaccine hesitancy, sociodemographic information, influenza vaccination history, pandemic-related experiences, and experiences of racial discrimination. Almost half (48.9%) of Black adults in Arkansas were not hesitant towards COVID-19 vaccines, while the remainder reported some level of hesitancy. Nearly a quarter were very hesitant (22.4%), while fewer reported being somewhat (14.0%) and a little (14.7%) hesitant. Using an ordered logistic regression with partial proportional odds, we find odds of COVID-19 vaccine hesitancy decreased as age and influenza vaccination increased. Odds of COVID-19 vaccine hesitancy were 1.70 times greater for Black adults who experienced the death of a close friend/family member due to COVID-19 and 2.61 times greater for individuals reporting discrimination with police or in the courts. Within-group analysis revealed nearly half of Black adults did not report any COVID-19 vaccine hesitancy and heterogeneity among those who were hesitant. Findings suggest there may be an important link between racial discrimination in the criminal justice system and COVID-19 vaccine hesitancy among Black adults.