Antecedents of Vaccine Hesitancy in WEIRD and East Asian Contexts

"COVID is a huge jigsaw puzzle that I am trying to make sense of myself": Exploring the perceptions towards the COVID-19 vaccine communication strategy in Australia amongst unvaccinated Australian adults

The COVID-19 pandemic and the associated introduction of a novel vaccine has provided researchers with the opportunity to investigate how to support vaccine acceptance and reduce hesitancy using novel approaches. This study aimed to understand the perceptions of COVID-19 unvaccinated Australian adults towards the COVID-19 vaccines and the factors influencing their vaccine decision-making. We also explored their attitudes towards vaccine communication strategies and the availability and quality of resources to support decision-making and preferences during future public health emergencies. In-depth interviews were undertaken with 35 members of the Australian community who self-identified as being unvaccinated against COVID-19 from September to December 2021 and did not intend to vaccinate. Key themes that emerged focused on past experiences of vaccination, feelings of being coerced or pushed into vaccination, concerns about transparency around the development processes used for the COVID-19 vaccines, the value of getting vaccinated and issues regarding the mandates being used. Participants acknowledged that they would be open to talking to peers but held some reservations about the process. Requirements for vaccination have now been lifted in many countries. While governments should continue to strive to promote COVID-19 primary and booster vaccines going forward, this research suggests that there will be a small proportion of the community who continue to actively decline the vaccine. Further work is needed to understand the strategies that can support decision-making during pandemics amongst people who remain uncertain about the need for the vaccines or are concerned about vaccine safety. This includes innovatively exploring the role of peer-to-peer communication and the influence it may have on correcting misunderstandings and supporting confidence.

Not All Conservatives Are Vaccine Hesitant: Examining the Influence of Misinformation Exposure, Political Ideology, and Flu Vaccine Acceptance on COVID-19 Vaccine Hesitancy

Despite the mass availability of COVID-19 vaccines in the United States, many Americans are still reluctant to take a vaccine as an outcome from exposure to misinformation. Additionally, while scholars have paid attention to COVID-19 vaccine hesitancy, the influence of general vaccine hesitancy for important viruses such as the flu has largely been ignored. Using nationally representative data from Pew Research Center’s American Trends Panel survey (Wave 79), this study examined the relationship between perceived misinformation exposure, COVID-19 vaccine hesitancy, flu vaccine acceptance, political ideology, and demographic trends. The findings suggest that those who accepted the flu vaccine were less likely to be COVID-19 vaccine-hesitant. In addition, moderation analyses showed that perceived misinformation exposure increases COVID-19 vaccine hesitancy for conservatives and moderates but not for liberals. However, perceived misinformation exposure influences COVID-19 vaccine hesitancy among conservatives only if they are also flu vaccine-hesitant. Perceived misinformation exposure has no role in COVID-19 vaccine hesitancy if individuals (irrespective of political ideology) are regular with their flu vaccine. The results suggest that the effect of misinformation exposure on negative attitudes toward COVID-19 may be associated with generalized vaccine hesitancy (e.g., flu). The practical and theoretical implications are discussed.

Trust in scientists on COVID-19 vaccine hesitancy and vaccine intention in China and the US

When we recognize various factors which influence vaccine willingness, it is unclear whether these factors work the same in different countries. This study explored how trust in scientists was related to COVID-19 vaccine hesitancies and vaccine willingness in China and the U.S. We attempted to understand the extent to which the perceived trustworthiness of scientists would predict vaccine hesitancies and intention to get vaccinated differently in these two countries. An online survey with participants in China (N = 391) and in the U.S. (N = 363) was conducted. Participants were asked about their view of scientists' competence, benevolence, and integrity as dimensions of trustworthiness, three types of vaccine hesitancies, as well as their willingness to get vaccinated. The results showed that trust in scientists was negatively related to individual vaccine hesitancy in both China and the U.S., and trust was negatively associated with the level of contextual hesitancy and vaccine-specific hesitancy in the U.S. Higher trust in scientists was also associated with the willingness to get vaccines in the U.S., rather than in China. Results yielded differences in China and the U.S. in how trust in scientists and vaccine hesitancies predicted individuals' willingness to get vaccinated.

Social Media News Use Induces COVID-19 Vaccine Hesitancy Through Skepticism Regarding Its Efficacy: A Longitudinal Study From the United States

There are mounting concerns about the adverse effects of social media on the public understanding of the COVID-19 pandemic and its potential effects on vaccination coverage. Yet early studies have focused on generic social media use and been based on cross-sectional data limiting any causal inferences. This study is among the first to provide causal support for the speculation that social media news use leads to vaccine hesitancy among US citizens. This two-wave survey study was conducted in the US using Qualtrics online panel-based recruitment. We employ mediation and moderated mediation analyses to test our assumptions. The results suggest that using social media to consume news content can translate into vaccine hesitancy by increasing citizens' skepticism regarding the efficacy of vaccines. However, these effects are contingent upon the news literacy of users, as the effects on vaccine hesitancy are more substantial among those with lower news literacy. The current study recommends to public policymakers and vaccine communication strategists that any attempt to reduce vaccine hesitancy in society should factor in the adverse effects of social media news use that can increase vaccine safety concerns.