COVID-19 vaccine hesitancy - reasons and solutions to achieve a successful global vaccination campaign to tackle the ongoing pandemic

The Association Between the We Can Do This Campaign and Vaccination Beliefs in the United States, January 2021-March 2022

Public health campaigns addressing COVID-19 vaccination beliefs may be effective in changing COVID-19 vaccination behaviors, particularly among people who remain vaccine hesitant. The "We Can Do This" COVID-19 public education campaign (the Campaign) was designed to increase COVID-19 vaccine confidence and uptake. This study aims to evaluate whether Campaign dose was associated with changes in vaccination beliefs related to COVID-19 vaccine concerns and perceived risks, the importance of COVID-19 vaccines, the perceived benefits of COVID-19 vaccination, normative beliefs about COVID-19 vaccination, and perceptions about general vaccine safety and effectiveness. The study linked data from four waves of a nationally representative longitudinal panel of U.S. adults (January 2021-March 2022) with Campaign paid digital media data (April 2021-May 2022). We used mixed-effects linear regressions to examine the association between Campaign paid digital impressions and changes in vaccination beliefs. The results provide evidence that Campaign digital impressions were significantly associated with changes in respondent beliefs regarding COVID-19 vaccine concerns and perceived risks, perceived benefits of COVID-19 vaccination, and perceptions about general vaccine safety and effectiveness. Findings suggest that public education campaigns may influence vaccine confidence and uptake by increasing positive vaccination beliefs and reducing vaccine concerns.

Using curiosity to render the invisible, visible

Virtues commonly associated with physicians and other healthcare professionals include empathy, respect, kindness, compassion, trustworthiness, and many more. Building upon the work of Bortolloti, Murphy-Hollies, and others, I suggest that curiosity as a virtue has an integral role to play in healthcare, namely, in helping to make those who are invisible, visible. Practicing the virtue of curiosity enables one to engage with and explore the experiences of patients and contributes toward building a physician-patient relationship of trust. As the perspectives and experiences of patients can be too often dismissed or lost within medical settings, curiosity can allow physicians to deeply know their patients, and thus provide better care. However, caution must be exercised so as to not to venture into inappropriate curiosity, where questions are asked for improper reasons or to help satisfy the personal interest of physicians. Finally, I sketch out two cases-on chronic pain and on vaccine hesitancy-to illustrate where curiosity can play a valuable role.

[Refusal and hesitation regarding vaccination against COVID-19 in Douala, Cameroon]

Introduction

vaccination is one of the strategies the World Health Organization recommends to reduce the burden of COVID-19. However, many African countries like Cameroon have low COVID-19 vaccination coverage. The purpose of this study was to investigate the reasons for the refusal of the population of the city of Douala to be vaccinated against COVID-19.

Methods

we conducted a cross-sectional and analytical study in Douala from February 10 to May 31, 2022. Participants, aged at least 21 years and residing in the city of Douala, were interviewed. Associations between the variables of interest were measured using Chi-square and Fisher tests, with a 95% confidence interval.

Results

a total of 1555 people were included in the study. Only 168 (11%) had been vaccinated. The proportion of vaccine refusal was high, with 711 (45.7%) refusing, 640 participants (41.1%) hesitating, and 204 people (13.2%) being in favor of COVID-19 vaccination. The main reasons for refusing anti-COVID-19 vaccination were fear of adverse effects (406; 44.8%), lack of information about vaccines (331; 36.5%), and lack of confidence (302; 33.3%). Factors associated with vaccine refusal were religion (p=0.026) and level of education (p=0.002).

Conclusion

this study revealed low COVID-19 vaccination coverage in Douala, with a significant proportion of refusal and hesitation towards vaccination. Communication strategies should take into account the reasons and factors associated with refusal.

Using machine learning algorithms to predict COVID-19 vaccine uptake: A year after the introduction of COVID-19 vaccines in Ghana

The impact of vaccine hesitancy on global health is one that carries dire consequences. This was evident during the outbreak of the COVID-19 pandemic, where numerous theories and rumours emerged. To facilitate targeted actions aimed at increasing vaccine acceptance, it is essential to identify and understand the barriers that hinder vaccine uptake, particularly regarding the COVID-19 vaccine in Ghana, one year after its introduction in the country. We conducted a cross-sectional study utilizing self-administered questionnaires to determine factors, including barriers, that predict COVID-19 vaccine uptake among clients visiting a tertiary and quaternary hospital using some machine learning algorithms. Among the findings, machine learning models were developed and compared, with the best model employed to predict and guide interventions tailored to specific populations and contexts. A random forest model was utilized for prediction, revealing that the type of facility respondents visited and the presence of underlying medical conditions were significant factors in determining an individual's likelihood of receiving the COVID-19 vaccine. The results showed that machine learning algorithms can be of great use in determining COVID-19 vaccine uptake.

Incidence and Outcomes of COVID-19 Vaccine Hypersensitivity Reactions and Success of COVID-19 Vaccine Provocation Tests Post Previous COVID-19 Vaccine Hypersensitivity

Background: The COVID-19 pandemic has led to high mortality rates. There have been reports of hypersensitivity reactions with mild to severe symptoms. The COVID-19 vaccine provocation test is a vaccination protocol for individuals with a history of hypersensitivity. This study aims to determine the benefits of COVID-19 vaccine provocation tests in patients with a history of hypersensitivity reactions to COVID-19 vaccines and its influencing factors. Objective: To determine the incidence, severity, outcome of hypersensitivity reactions, and success of the COVID-19 vaccine provocation test. Methods: A retrospective cohort study was conducted, using subjects taken from medical record data at the RSCM who had received COVID-19 vaccination with a history of hypersensitivity. Data was taken from the COVID-19 vaccination records at the RSCM, BPJS Health Primary Care application. Results: From a total of 29,036 doses of the COVID-19 vaccine, 44 patients experienced hypersensitivity reactions. As many as 38.64% did not continue vaccination, 2.27% experienced mild hypersensitivity, and 59.44% were successfully vaccinated. Conclusions: People with a history of hypersensitivity reactions to COVID-19 vaccines can still receive subsequent COVID-19 vaccinations at healthcare facilities equipped with anaphylaxis kits and immunology allergists.

Communicating uncertainties regarding COVID-19 vaccination: Moderating roles of trust in science, government, and society

This study examined how uncertainty affects information seeking and avoidance behaviors via information insufficiency in the COVID-19 vaccination context. It also investigated how trust in science, government, and society moderate the effects of information insufficiency. An online experiment with 131 Korean adults showed that uncertainty indirectly affects information seeking intentions via information insufficiency, which is moderated by science trust and governmental trust. It also showed that uncertainty indirectly affects information avoidance intentions via information insufficiency, which is moderated by social trust.

COVID-19-Related Stressors and Psychophysical Health Conditions among Italian University Students: A Post Pandemic Insight

The COVID-19 medical emergency has ended worldwide, yet the psychological impact of these years of unprecedented changes on students' lives still needs to be deepened.

METHODS

This study aims to assess and compare COVID-19-related stressors (relationships and academic life; isolation; and fear of contagion) and psychophysical symptoms reported by 637 university students at three times, i.e., April 2020 (n = 197), April 2021 (n = 200), and April 2022 (n = 240). The impact of COVID-19-related stressors on psychophysical symptoms within each time was also tested.

RESULTS

In April 2022, perceived isolation and fear of contagion decreased from the peak registered in April 2021, but stress related to relationships and academic life remained high. An ongoing increase in psychophysical symptoms was found. More than 50% of students reported clinical levels of sleep disorders, depression, psychoticism, and interpersonal sensitivity. In April 2022, students still perceiving stress related to relationships and academic life and isolation were at risk for anxiety, somatization, and sleep disorders. Students still perceiving stress related to fear of contagion were also at risk for depression, obsessive-compulsive symptoms, and psychoticism.

CONCLUSION

The findings emphasized the long-lasting effects of COVID-19-related stress on students' psychophysical health. Interventions must aim at supporting students in dealing with the complex post-pandemic adjustment process.

Efficacy and safety of a novel antiviral herbal preparation in ICU-admitted patients with COVID-19: A phase III double-blinded controlled trial

Objective

Despite an increasing number of studies, there is as yet no definite treatment developed for the coronavirus disease 2019 (COVID-19). In this clinical trial, we examined the efficacy of a novel herbal antiviral preparation in critically ill COVID-19 patients.

Materials and Methods

A total number of 120 ICU-admitted patients with a diagnosis of COVID-19 pneumonia were recruited to the trial. Participants were equally randomized to receive either the novel antiviral preparation sublingually, for up to two consecutive weeks or till discharge, or placebo. Clinical and laboratory parameters as well as survival rates were compared between the two groups.

Results

The cumulative incidence of death throughout the study period was 8.33% in the intervention group and 60% in the placebo group (risk ratio: 0.14; 95% confidence interval [CI], 0.05 to 0.32; p<0.001). On day 7, several parameters including white blood cells (WBCs) count, C-reactive protein, and SpO2 were improved for the treatment group compared with the placebo group (p-values of 0.05, 0.01, and <0.001, respectively).

Conclusion

This preparation might be suggested as a potentially promising COVID-19 treatment.

Vaccine hesitancy and equity: lessons learned from the past and how they affect the COVID-19 countermeasure in Indonesia

INTRODUCTION

Indonesia has made progress in increasing vaccine coverage, but equitable access remains challenging, especially in remote areas. Despite including vaccines in the National Immunization Program (NIP), coverage has not met WHO and UNICEF targets, with childhood immunization decreasing during the COVID-19 pandemic. COVID-19 vaccination has also experienced hesitancy, slowing efforts to end the pandemic.

SCOPE

This article addresses the issue of vaccine hesitancy and its impact on vaccination initiatives amidst the COVID-19 pandemic. This article utilizes the vaccine hesitancy framework to analyze previous outbreaks of vaccine-preventable diseases and their underlying causes, ultimately providing recommendations for addressing the current situation. The analysis considers the differences between the pre-pandemic circumstances and the present and considers the implementation of basic and advanced strategies.

KEY FINDINGS AND CONCLUSION

Vaccine hesitancy is a significant challenge in the COVID-19 pandemic, and public health campaigns and community engagement efforts are needed to promote vaccine acceptance and uptake. Efforts to address vaccine hesitancy promote trust in healthcare systems and increase the likelihood of individuals seeking preventive health services. Vaccine hesitancy requires a comprehensive, culturally sensitive approach that considers local contexts and realities. Strategies should be tailored to specific cultural and societal contexts and monitored and evaluated.

Perceptions of the COVID-19 Vaccine and Willingness to Receive Vaccination among Health Workers in Nigeria: A Cross-sectional Study

BACKGROUND

COVID-19 vaccine hesitancy is a major barrier to vaccine uptake, and the achievement of herd immunity is required to reduce morbidity and mortality and protect the most vulnerable populations. In Nigeria, COVID-19 vaccine hesitancy has been high, and uptake remains very low. Healthcare workers (HCWs) in Nigeria can help support public health efforts to increase vaccine uptake.

AIM

This study evaluates Nigerian HCWs' acceptance and intent to recommend the COVID-19 vaccine.

SUBJECTS AND METHODS

Cross-sectional survey among 1,852 HCWs in primary, secondary, and tertiary care settings across Nigeria. Respondents included doctors, nurses, pharmacy workers, and clinical laboratory professionals who have direct clinical contact with patients in various healthcare settings. A 33-item questionnaire was used in the study, with two of the questions focused on the COVID-19 vaccine. The responses to the two questions were analyzed using Chi-square (c2) tests and independent t-tests to determine the acceptance of the vaccine.

RESULTS

The majority of respondents were younger than 34 years (n = 1,227; 69.2%) and primarily worked in hospitals (n = 1,278; 72.0%). Among the respondents, 79.2% (n = 1,467) endorsed the COVID-19 vaccine as a critical tool in reducing the impact of the disease, and 76.2% (n = 1,412) will accept and recommend the vaccine to their patients. The younger HCWs were more likely to endorse and recommend the vaccine to their patients.

CONCLUSION

There is a moderately high COVID-19 vaccine acceptance rate among HCWs surveyed in our study. The confidence of HCWs in its use and their willingness to recommend it to their patients can provide a potentially useful element in increasing acceptance by the larger population in Nigeria.

Campaign Governance and Partnerships: Unraveling COVID-19 Vaccine Promotion Efforts in China's Neighborhoods

Background

COVID-19 vaccine promotion helps counter vaccine hesitancy and raise vaccine acceptance. Therefore, the Chinese state created collaborative infrastructures of COVID-19 vaccine promotion programs to promote stakeholder engagement and unload the burden of policy practitioners. However, partnerships in COVID-19 vaccine promotion programs have been underrepresented.

Methods

To address this lacuna, we qualitatively explored how partnerships in the COVID-19 vaccine promotion campaign (CVPC) were organized in China's neighborhoods. Specifically, we recruited participants via personal networks, referrals from acquaintances, and snowballing approaches, and conducted the qualitative thematic analysis following interviews with 62 Chinese stakeholders.

Results

This study indicates that to promote partnerships in CVPCs, neighborhood managers formed leadership in CVPCs, expanded the collaborative network, trained Health Promotion Practitioners (HPPs), and coordinated with HPPs to shape partnership agreements, produced COVID-19 vaccine promotional materials and advertised COVID-19 vaccines via diverse media tools. Although coproduction of CVPCs to a certain extent promoted state-society interaction in neighborhoods and state responsiveness to public demands, partners' disagreements on strategies applied by states for promoting COVID-19 vaccines eroded partnerships in CVPCs.

Conclusion

To construct a robust partnership in CVPCs, depoliticizing CVPCs and creating shared values among stakeholders in CVPCs are expected. Our study will not only deepen global audiences' understanding of CVCPs in China but also offer potential neighborhood-level solutions for implementing local and global health promotion efforts.

Pooled rates and demographics of POTS following SARS-CoV-2 infection versus COVID-19 vaccination: Systematic review and meta-analysis

PURPOSE

To address recent concerns of postural orthostatic tachycardia syndrome (POTS) occurring after severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection and coronavirus disease 2019 (COVID-19) vaccination.

METHODS

We searched PubMed, Web of Science, and Scopus as of 1st June 2023. We performed a systematic review and meta-analysis of pooled POTS rate in SARS-CoV-2-infected and COVID-19-vaccinated groups from epidemiological studies, followed by subgroup analyses by characteristic. Meta-analysis of risk ratio was conducted to compare POTS rate in infected versus uninfected groups. Meta-analysis of demographics was also performed to compare cases of post-infection and post-vaccination POTS from case reports and series.

RESULTS

We estimated the pooled POTS rate of 107.75 (95 % CI: 9.73 to 273.52) and 3.94 (95 % CI: 0 to 16.39) cases per 10,000 (i.e., 1.08 % and 0.039 %) in infected and vaccinated individuals based on 5 and 2 studies, respectively. Meta-regression revealed age as a significant variable influencing 86.2 % variance of the pooled POTS rate in infected population (P < 0.05). Moreover, POTS was 2.12-fold more likely to occur in infected than uninfected individuals (RR = 2.12, 95 % CI: 1.71 to 2.62, P < 0.001). Meta-analyzed demographics for cases of post-infection (n = 43) and post-vaccination (n = 17) POTS found no significant differences in several variables between groups, except that the time from exposure to symptom onset was shorter for cases of post-vaccination POTS (P < 0.05).

CONCLUSION

Although evidence is limited for post-vaccination POTS, our study showed that POTS occur more frequently following SARS-CoV-2 infection than COVID-19 vaccination.

Factors Influencing the Healthcare Workers' Willingness to Receive the COVID-19 Booster Dose in Tuscany (Italy)

BACKGROUND

The World Health Organization has defined vaccine hesitancy as behavior influenced by several factors, including trust in the vaccine itself or its provider or the perceived need for vaccination. The aim of this study was to investigate the factors influencing the willingness to receive the COVID-19 vaccine among the employees and healthcare professionals of the Central Tuscany Local Health Authority (CT-LHA) in Italy.

METHODS

From July to October 2022, a cross-sectional study was conducted. An online questionnaire was administered to 7000 employees of the CT-LHA. The questionnaire analyzed the factors that influenced receiving the booster dose of the COVID-19 vaccine. The sample was stratified by gender, age, type of occupation (healthcare or non-healthcare workers), and seniority. Incomplete questionnaires were excluded. A chi-squared test was performed through STATA. The significance level was set at 95%.

RESULTS

Of the questionnaires administered, 1885 (26.9%) questionnaires were eligible for the study. In the previous vaccination campaign, the healthcare workers (HCWs) considered the vaccine used by CT-LHA as safe, in contrast to non-healthcare workers (N-HCWs), who considered it less secure (p < 0.05). The HCWs showed a higher propensity for vaccine safety to receive the booster dose than N-HCWs. N-HCWs appeared to be less affected by an updated booster dose than HCWs (p < 0.05).

CONCLUSIONS

The factors studied appear to influence HCWs differently from N-HCWs. Both HCWs and N-HCWs would choose an upgraded mRNA vaccine for the booster dose.

Examining the relationship between COVID-19 and Bell's palsy: Experience of a single tertiary care center

BACKGROUND

While the etiology of Bell's palsy (BP) is largely unknown, current evidence shows it may occur secondary to the immune response following a viral infection. Recently, BP has been reported as a clinical manifestation of coronavirus disease (COVID-19).

OBJECTIVES

To investigate an association between COVID-19 infection and BP. Additionally, to evaluate the need for COVID-19 testing in patients who present with BP.

METHODS

Hospital records of patients who presented to a single tertiary care center with BP in 2020 and 2021 were reviewed for presenting symptoms, demographics, COVID-19 infection and vaccination status.

RESULTS

There was no statistically significant difference between patients with BP who had a positive or negative COVID test in terms of sex, BMI, age, race, smoking history or alcohol use. All 7 patients with BP and a positive COVID test were unvaccinated. Of the total cohort of 94 patients, 82 % were unvaccinated at the time of the study. None of the 17 patients who were vaccinated had a positive COVID test. A history of BP showed no statistical significance (10.3 % vs 14.3 %, p-value 0.73).

CONCLUSION

We discovered a limited cohort of patients who underwent COVID-19 testing at the time of presentation for BP. Though there have been recent studies suggesting a COVID-19 and BP, we were unable to clearly identify a relationship between COVID-19 and BP. Interestingly, all patients with facial paralysis and COVID-19 were unvaccinated. To further study this relationship, we recommend consideration of a COVID-19 test for any patient that presents with facial paralysis.

Lessons learned from the successful polio vaccine experience not learned or applied with the development and implementation of the COVID-19 vaccines

The eradication of polio during the latter half of the 20th century can be considered one of the greatest medical triumphs in history. This achievement can be attributed to the development of vaccines that received the public's almost unwavering acceptance of them, especially by parents who had been waiting/hoping for a medical breakthrough that would ensure that their children would not succumb to the devastating effects of infantile paralysis. Sixty years later, the worldwide population was now confronted with an equally devastating disease - Covid-19 - which by the 2020-2021 time period had reached pandemic levels not seen since the flu outbreak of 1918. Unlike polio, however, several vaccines against Covid-19 were rapidly developed and deployed due to advances in microbiologic and immunologic technology. But also, unlike the polio vaccine experience, there was not universal acceptance of the Covid-19 vaccines and this has led to continuation of the pandemic into 2023 (albeit at a reduced level). In addition, acceptance of the Covid-19 vaccines has been confronted with the uncertainty that they do not apparently prevent transmission in asymptomatic people, and the mutation rate of the virus requires periodic re-evaluation and possible upgrading of the vaccines. This review will focus on the various factors that have led to these contrasting attitudes toward these two different vaccines and how resistance and hesitancy to vaccine use can be overcome by implementing various measures, after introducing the key roles that the sciences of microbiology and immunology have played in vaccine development over the past 250+ years.

Predictors of COVID-19 vaccine uptake among adults in South Africa: multimethod evidence from a population-based longitudinal study

BACKGROUND

COVID-19 vaccine coverage remains low in many low and middle-income countries despite widespread access. To understand the dynamic decision-making process around vaccination and provide evidence for future vaccine promotion campaigns, we identified predictors of COVID-19 vaccine uptake among South African adults, including those who did not believe in the vaccine's safety or efficacy.

METHODS

Data from two longitudinal telephone surveys in late 2021 and early 2022 of unvaccinated South African adults were used to model COVID-19 uptake. Predictors of interest informed by the theory of planned behaviour included vaccine attitudes and beliefs, social norms, perceived behavioural control and vaccine intentions. Responses to open-ended questions provided insights into key reasons for getting vaccinated.

RESULTS

Among panel participants (n=1772), 19% reported being vaccinated between Survey 1 and Survey 2. Vaccine uptake was greater among participants who reported wanting to get vaccinated 'as soon as possible' (+27 percentage points, p<0.01). Vaccine uptake was greater among participants who believed that the vaccine is effective in preventing COVID-19 infection and/or death (+12 percentage points, p<0.01) and lower among those who believed that the vaccine is unsafe (-9 percentage points, p<0.01). Among participants who did not believe the vaccine is safe, living with someone already vaccinated against COVID-19 increased vaccine uptake (+6 percentage points, p<0.05). At Survey 1, the intention to get vaccinated as soon as possible was positively associated with perceived risk of illness from COVID-19 (+9.2 percentage points, p<0.05), the belief that most people in their area had been vaccinated (+7.0 percentage points, p<0.05) and living with someone already vaccinated against COVID-19 (+6.6 percentage points, p<0.05).

CONCLUSION

Study findings underscore the predictive power of intentions and of beliefs about disease risk, vaccine safety and vaccine efficacy. Social proof interventions hold promise for increasing vaccination intentions and overcoming concerns about vaccine safety.

Estimating the delivery costs of COVID-19 vaccination using the COVID-19 Vaccine Introduction and deployment Costing (CVIC) tool: the Lao People's Democratic Republic experience

BACKGROUND

The COVID-19 Vaccine Introduction and deployment Costing (CVIC) tool was developed to assist countries to estimate incremental financial costs to roll out COVID-19 vaccines. This article describes the purposes, assumptions and methods used in the CVIC tool and presents the estimated financial costs of delivering COVID-19 vaccines in the Lao People's Democratic Republic (Lao PDR).

METHODS

From March to September 2021, a multidisciplinary team in Lao PDR was involved in the costing exercise of the National Deployment and Vaccination Plan for COVID-19 vaccines to develop potential scenarios and gather inputs using the CVIC tool. Financial costs of introducing COVID-19 vaccines for 3 years from 2021 to 2023 were projected from the government perspective. All costs were collected in 2021 Lao Kip and presented in United States dollar.

RESULTS

From 2021 to 2023, the financial cost required to vaccinate all adults in Lao PDR with primary series of COVID-19 vaccines (1 dose for Ad26.COV2.S (recombinant) vaccine and 2 doses for the other vaccine products) is estimated to be US$6.44 million (excluding vaccine costs) and additionally US$1.44 million and US$1.62 million to include teenagers and children, respectively. These translate to financial costs of US$0.79-0.81 per dose, which decrease to US$0.6 when two boosters are introduced to the population. Capital and operational cold-chain costs contributed 15-34% and 15-24% of the total costs in all scenarios, respectively. 17-26% went to data management, monitoring and evaluation, and oversight, and 13-22% to vaccine delivery.

CONCLUSIONS

With the CVIC tool, costs of five scenarios were estimated with different target population and booster dose use. These facilitated Lao PDR to refine their strategic planning for COVID-19 vaccine rollout and to decide on the level of external resources needed to mobilize and support outreach services. The results may further inform inputs in cost-effectiveness or cost-benefit analyses and potentially be applied and adjusted in similar low- and middle-income settings.

Integrating the person-centered approach with the study of vaccine hesitancy: Applying latent profile analysis to identify vaccine hesitancy subpopulations and assess their relations with correlates and vaccination outcomes

In scholarly and popular discussions of vaccine hesitancy, authors have repeatedly referred to different "types" of vaccine hesitant individuals; however, almost all modern research on vaccine hesitancy utilizes variable-centered approaches to identify the relation of variables rather than a person-centered approach to identify subpopulations, which suggests that a discrepancy exists between conceptual discussions and empirical research on vaccine hesitancy. For this reason, the current article conducts a latent profile analysis (LPA) on the dimensions of a well-supported vaccine hesitancy measure, which assess hesitancy towards vaccines in general. We also assess the relations of the resultant profiles (e.g., subpopulations) with relevant self-reported outcomes and correlates, wherein most of our outcomes are associated with COVID-19 and flu vaccines. Our LPA results support the existence of eight vaccine hesitancy profiles. The profile with the most unfavorable vaccination outcomes (e.g., willingness, receipt, and word-of-mouth) was associated with greater perceptions that vaccines cause health risks and unneeded when healthy; the profile with the most favorable vaccination outcomes was associated with low levels of all vaccine hesitancy dimensions. The other profiles produced a clear gradient between these two extremes. The profiles also differed regarding their standing on correlates, but the clearest difference was their relation with political orientation. Profiles with more unfavorable vaccination outcomes were associated with conservatism, whereas profiles with more favorable vaccinations outcomes were associated with liberalism. These results provide a new perspective for current understandings of vaccine hesitancy and open several avenues for future research.

Motivation and Hesitancies in Obtaining the COVID-19 Vaccine-A Cross-Sectional Study in Norway, USA, UK, and Australia

BACKGROUND

Vaccinations protect the public against serious diseases or death; however, some individuals are hesitant in obtaining them. We aim to contribute to the understanding of the challenges of vaccination roll-out by examining the motivations, hesitancies, and their associated factors, in obtaining the COVID-19 vaccines two years into the pandemic.

METHODS

Cross-sectional online surveys were conducted in Norway, the USA, the UK, and Australia (N = 1649). The participants self-reported whether they had obtained one of the COVID-19 vaccines. Those who had obtained a vaccine reported the reason for their motivation, and those who had not obtained a vaccine reported the reason for their hesitancies.

RESULTS

More than 80% of the total sample obtained a COVID-19 vaccine because of public health recommendations and trusted that it was safe. Among those who had not obtained one, the most frequent reason was concerns about side effects. Most who obtained the vaccine reported that they believed in science, but many of those who had not obtained one reported distrust. Among those who had not obtained a vaccine, reports of distrust in policies and science were frequent. Concerns about side effects were more common in males and those with lower education, and those living in rural or remote areas.

CONCLUSION

People who endorsed the vaccine believed that the vaccine reduces the risk of illness, protects the health of others, and had trust in scientific vaccination research. Conversely, the most frequent reason for vaccine hesitancy was concerns about side effects, followed by distrust in healthcare and science. These findings could inform public health strategies that aim to increase vaccination rates.

Addressing Unmet Needs in Vaccination for Older Adults in the Asia Pacific: Insights from the COVID-19 Pandemic

The impact of vaccinating the older population against vaccine-preventable diseases in terms of health, social and economic benefits has been increasingly recognised. However, there is a gap in the utilisation of vaccines worldwide. The population is ageing at an unprecedented pace in the Asia-Pacific (APAC) region, with the number of persons older than 65 years set to double by 2050 to around 1.3 billion. More than 18% of the population in Japan, Hong Kong, and China is over the age of 65 years. This highlights the importance of prioritising resources to address societal obligations toward the needs of the ageing generation. This review provides an overview of the challenges to adult vaccination in APAC, drivers to increase vaccination coverage, vaccination insights gained through the COVID-19 pandemic, and potential measures to increase the uptake of adult vaccines in the region.

From Polio to COVID-19: Examining the Impact of Pandemics on Childhood Vaccination Programs

This review article aims to examine the impact of pandemics on childhood vaccination programs, specifically looking at the examples of polio and coronavirus disease 2019 (COVID-19). The article provides a comprehensive overview of the history of polio vaccination programs, including the challenges of eradicating the disease and the barriers to vaccine uptake. The article also looks at the global efforts to eradicate polio, such as the Global Polio Eradication Initiative, and the progress made in reducing the number of polio cases worldwide. The article reviews the impact of the COVID-19 pandemic on childhood vaccination programs and how the pandemic has disrupted routine vaccination services. Lockdowns and travel restrictions have contributed to this, which has reduced access to medical facilities and vaccine uptake. The article also explores how the prioritization of COVID-19 vaccines has led to a diversion of resources away from routine childhood immunization programs. The article highlights the need to address these challenges to prevent a resurgence of vaccine-preventable diseases. Furthermore, the article discusses the lessons learned from these pandemics, such as the importance of global collaboration, vaccine equity, addressing vaccine hesitancy, pandemic preparedness, and embracing technology. The article emphasizes the need to prioritize vaccine equity and ensure that vulnerable populations have access to vaccines. Additionally, the article stresses the importance of addressing vaccine hesitancy and providing effective communication and education about vaccines. The article also advocates for pandemic preparedness, emphasizing the need to invest in research and development of vaccines for emerging infectious diseases. Finally, the article suggests embracing technology as a means to improve vaccine accessibility and distribution.

Reasons for not getting COVID-19 vaccine in Ardabil, a Northwestern province in Iran: Based on an ecological approach

BACKGROUND

Understanding the reasons for not getting the COVID-19 vaccine can help to increase acceptability and tackle vaccine hesitancy and consequently reach high coverage for this new vaccine. Using an ecological approach, the reasons for not getting the vaccine in the Iranian population was investigated.

METHODS AND MATERIAL

This study was conducted from October to December 2021 on 426 participants who had not received the COVID-19 vaccine. The following subsets of questions were included in the questionnaire: intrapersonal level factors, interpersonal level factors, group and organization, and society and policy-making. Multivariable logistic regression was used, and the odds ratio (OR) and 95% confidence intervals (CIs) were estimated for vaccine hesitancy (dependent variable) according to the reasons for not getting COVID vaccine scores (independent variable) using multivariable logistic regression in 3 different models, including Model 0: unadjusted, Model 1: adjusted for age, gender, and underlying disease, and Model 2: adjustment for age, gender, underlying disease, education, place of living, income, marital status, and employment.

RESULTS

A significant difference was found regarding gender between likely and not likely groups (P = 0.016). A significant association was observed between the vaccine hesitancy and interpersonal (unadjusted model: OR = 0.833 (CI: 0.738-0.942), P for trend = 0.003; model 1: OR = 0.820 (CI: 0.724-0.930), P for trend = 0.002; model 2: OR = 0.799 (CI: 0.703-0.909), P for trend = 0.001) and group and organization (unadjusted model: OR = 0.861 (CI: 0.783-0.948), P for trend = 0.002; model 1: OR = 0.864 (CI: 0.784-0.952, P for trend = 0.003; model 2:OR = 0.862 (CI: 0.781-0.951, P for trend = 0.003). There was no significant association between vaccine hesitancy and intrapersonal and society and policy-making (P > 0.05).

CONCLUSIONS

We found that a high score of "interpersonal" and "group and organization" factors were associated with lower intention to COVID vaccine. Moreover, women had higher vaccination intentions than men.

The political component of COVID-19 vaccine choice: Results from a conjoint experiment

OBJECTIVES

Prior research highlights the role of efficacy, vaccine safety, and availability in vaccine hesitancy. Research is needed to better understand the political driving forces behind COVID-19 vaccine uptake. We examine the effects of the origin of a vaccine, and approval status within the EU on vaccine choice. We also test if these effects differ by party affiliation among Hungarians.

STUDY DESIGN

We use a conjoint experimental design to assess multiple causal relationships. Respondents choose between two hypothetical vaccine profiles randomly generated from 10 attributes. The data were gathered from an online panel in September 2022. We applied a quota for vaccination status and party preference. Three hundred twenty-four respondents evaluated 3888 randomly generated vaccine profiles.

METHODS

We analyse the data using an OLS estimator with standard errors clustered by respondents. To further nuance our results, we test for task, profile, and treatment heterogeneity effects.

RESULTS

By origin, respondents prefer German (MM 0.55; 95% CI 0.52-0.58) and Hungarian (0.55; 0.52-0.59) vaccines over US (0.49; 0.45-0.52) and Chinese vaccines (0.44; 0.41-0.47). By approval status, vaccines approved by the EU (0.55, 0.52-0.57) or pending authorization (0.5, 0.48-0.53) are preferred over unauthorised ones (0.45, 0.43-0.47). Both effects are conditional on party affiliation. Government voters especially prefer Hungarian vaccines (0.6; 0.55-0.65) over others.

CONCLUSIONS

The complexity of vaccination decisions calls for the usage of information shortcuts. Our findings demonstrate a strong political component that motivates vaccine choice. We demonstrate that politics and ideology have broken into fields of individual-level decisions such as health.

Impact of a Video-Based Educational Intervention on the Levels of Knowledge and Concerns about COVID-19 Vaccination

BACKGROUND

The hesitancy to receive the COVID-19 vaccine plays a role in delaying the current global and national COVID-19 management strategies. Evidence has highlighted the importance of examining the public's concerns and knowledge about COVID-19 vaccines in sustaining public prevention of the further spread of the virus worldwide. This study aimed to assess the impact of a video-based educational session on the Saudi public's levels of knowledge and concerns about the COVID-19 vaccination.

METHODS

In a double-blind, randomized posttest-only control group study design, 508 Saudis were randomized to an experimental group (n = 253) and a control group (n = 255). The experimental group was exposed to a video-based educational session, while the control group was not. Then both groups were subjected to a validated questionnaire to assess their level of knowledge and concerns about the vaccine.

RESULTS

In comparison to the control group, the experimental group showed a significantly lower proportion of overall high concern (0.4% vs. 5.5%, p < 0.001) and a higher proportion of overall good knowledge (74.2% vs. 55.7%, p < 0.001). After adjustment for possible confounders, the experimental group showed a significantly lower percent mean score of overall concern (45.0% vs. 65.0%, p < 0.001) and a higher percent mean score of overall knowledge (74.2% vs. 55.7%, p < 0.001) than the control group.

CONCLUSIONS

The video-based educational intervention positively impacted the levels of knowledge and concerns about COVID-19 vaccination among the experimental group. These interventions safeguard against the rumors and misconceptions about COVID-19 vaccinations. Further studies on the impacts of such interventions on vaccine uptake are recommended.

COVID-19 vaccine hesitancy: a systematic review of barriers to the uptake of COVID-19 vaccine among adults in Nigeria

Background

Since the outbreak of coronavirus (COVID-19) disease was reported in 2019, huge human and material resources have been expended globally to combat the spread of the disease. Achieving herd immunity through mass vaccination remains an important strategy to adopt in the war against this disease since it is practically impossible for 60-70% of the population to achieve immunity through natural infection alone. Unfortunately, there have been widespread reports of COVID-19 vaccine hesitancy. This study aims to systematically review the literature to provide an up-to-date assessment of COVID-19 vaccine acceptance rates and also explore factors impacting COVID-19 vaccine hesitancy among adults in Nigeria.

Main body of the abstract

A systematic search of indexed electronic peer-reviewed literature published from 2019 onwards was conducted in Science Direct, PubMed, ProQuest, and EBSCOhost databases and reported according to the PRISMA checklist and Synthesis without meta-analysis (SWiM) in systematic review reporting guidelines. Fifteen out of the 148 studies retrieved, met the inclusion criteria and these were critically appraised using the Centre for Evidence-Based Medicine Critical Appraisal checklist and Mixed Methods Appraisal Tool, version 2018. Basic descriptive statistic (percentage) was employed in the analysis of acceptance rates of the COVID-19 vaccine among various subgroups of adults in Nigeria, while a thematic analysis of the facilitators and barriers to the uptake of the COVID-19 vaccine in Nigeria was conducted. Acceptance rates ranging from 24.3% to 49.5% were observed across the four studies conducted among the high-risk populations in Nigeria, while the acceptance rates among the low-risk populations ranged from 26.0% to 86.2%. Themes such as socio-demographic factors, perception of risk factors, and concerns about the vaccine's safety and efficacy act interchangeably as facilitators and barriers to the uptake of COVID-19 vaccines, whereas political factors, conspiracy theories, and cost primarily act as barriers to vaccine uptake.

Short conclusion

Substantial heterogeneity was observed in COVID-19 vaccine acceptance rates among adults in Nigeria. More than half of the studies reviewed reported acceptance rates below 60.0%. A multidisciplinary approach is recommended in engaging important stakeholders, to effectively address COVID-19 vaccine hesitancy in Nigeria.

COVID-19 in the homeless population: a scoping review and meta-analysis examining differences in prevalence, presentation, vaccine hesitancy and government response in the first year of the pandemic

AIMS

People experiencing homelessness (PEH) have been identified as being increasingly susceptible to Coronavirus disease (COVID-19), with policies enacted to test, isolate, increase hygiene practices and prioritise vaccines among this population. Here, we conduct a scoping review of the current evidence-base pertaining to the prevalence and presentation of COVID-19 in PEH, COVID-vaccine hesitancy rates and government interventions enacted within the first year of the pandemic for PEH.

MATERIALS AND METHODS

A systematic search was conducted on Pubmed, Cochrane, Embase and MedRxiv databases for studies reporting primary data on COVID-19 prevalence and clinical characteristics in PEH, vaccine uptake for PEH and policies enacted targeting PEH. Study qualities were assessed with The National Heart, Lung and Blood Institute's set of Study Quality.

RESULTS

Eighty-three studies were included in our final analysis. The overall prevalence of symptomatic COVID-19 infection in PEH is estimated at 35%. The most common symptoms found were cough and shortness of breath, followed by fever. Concerns regarding vaccine hesitancy amongst PEH related to thoroughness of COVID-19 vaccine clinical trials, side effects and mistrust of the government. The main strategies implemented by governments were mass testing, adaption of healthcare service provision, provision of alternative housing, encouraging personal hygiene (hand sanitation and mask wearing), and inter-organisational communication.

DISCUSSION

In our meta-analysis, 35% of PEH with a COVID-19 infection presented symptomatically; the low prevalence of symptomatic COVID-19 infection suggests widespread testing following outbreaks would be beneficial for this group of individuals. Temporary recuperation units and measures for housing stability in the pandemic, namely provision of alternative housing and stopping evictions, were found to be highly effective. High rates of vaccine hesitancy means that education and encouragement towards vaccination would be beneficial for this vulnerable population, where comorbidities are common. Finally increased focus in research should be placed on the mental health burden of COVID-19 and the pandemic on PEH moving forwards.

COVID-19 vaccination status in Germany: Factors and reasons for not being vaccinated (yet)

Introduction

The COVID-19 pandemic has demonstrated that effective vaccines constitute a central element of successful pandemic control. Although everyone in Germany has had the opportunity to receive a COVID-19 vaccine, some people remain hesitant or refuse to get vaccinated. To address this phenomenon as well as to examine the unvaccinated population more closely, the present study investigates (RQ1) factors explaining the COVID-19 vaccination status (RQ2) trust in different types of COVID-19 vaccines, and (RQ3) people's specific reasons for not getting vaccinated against COVID-19.

Methods

We base our findings on a representative survey that we conducted in Germany in December 2021 with 1,310 respondents.

Results

In response to the first research question, a logistic regression shows that trust in specific institutions (e.g., medical experts and authorities) is positively related to vaccination status, whereas trust in companies and COVID-19-related social and alternative media consumption decreases the likelihood of being vaccinated. Furthermore (RQ2), while vaccinated people trust mRNA-based vaccines (e.g., BioNTech), most unvaccinated people put greater trust in recently developed protein-based vaccines (e.g., Novavax), albeit on a low level. Finally, our study reveals (RQ3) that the most important reason why people choose not to get vaccinated is that they wish to make their own decisions about their bodies.

Conclusion

Based on our results, we suggest that a successful vaccination campaign should address COVID-19 risk groups and lower income populations, increase trust in different public institutions and newly developed vaccines in advance, establish a multisectoral approach, and debunk fake news and misinformation. Furthermore, since unvaccinated respondents state that the desire to make their own choices about their body is the main reason why they have not gotten vaccinated against COVID-19, an effective vaccination campaign should emphasize the need for general practitioners who have a closer relationship with their patients who, in turn, trust their doctors.

Socioeconomic and demographic characteristics influencing the hesitancy and refusal of COVID-19 vaccine in Ghana

Background

Ghana was the first country to receive the coronavirus vaccination in West Africa from AstraZeneca or Oxford. Ghana plans to vaccinate 20 million out of the 32 million population and provide the necessary doses utilizing multilateral and bilateral agreements. As Ghana begins vaccinating its citizens, there is some skepticism about administering the coronavirus vaccine (CVV). This research aimed to analyze the socioeconomic and demographic characteristics influencing vaccine hesitancy (VH) and refusal among Ghanaians.

Methods

The multinomial logistics regression model was employed to investigate the relationship between respondents' socio-demographic characteristics and VH. The research data were gathered between March to June 2021 through an online survey.

Findings

The findings of this study indicated that approximately 92.75% of the 400 respondents have heard about CVV. The study suggests that less than 5% of the participants have so far received the CVV. Most of the respondents (36.8%) indicated rejecting the CVV. Interestingly, male participants [adjusted odds ratio (AOR) = 1.048; 95% confidence interval (CI): 0.532-2.063] with higher educational backgrounds (AOR = 2.11; 95% CI: 0.870-5.121) had higher odds of being CVV hesitant or refusers. Low economic class, rural settlers, unmarried individuals, and unemployed people also had higher odds of being VH or refusers. The survey also shows that most Ghanaians refused to receive the CVV because they did not trust the system to track the vaccine's side or adverse effects.

Conclusion

Government can use social media platforms and other media platforms to effectively provide relevant information regarding the full benefit and risks of taking the virus.

COVID-19 vaccine hesitancy among Nigerians living with non-communicable diseases: a qualitative study

OBJECTIVES

The discovery and subsequent manufacture of various types of COVID-19 vaccines were considered a breakthrough in the fight against the COVID-19 pandemic. Initially, limited supplies of COVID-19 vaccines warranted vulnerable populations such as people living with chronic non-communicable diseases and the elderly to be prioritised for vaccination. Nevertheless, the uptake of the COVID-19 vaccines among these populations was suboptimal. In this study, we aimed to describe the drivers of COVID-19 vaccine hesitancy among people living with chronic non-communicable diseases in Ibadan, Nigeria.

METHOD

We applied qualitative methods to explore the feelings and thoughts of people living with chronic non-communicable diseases towards COVID-19 vaccines, at a tertiary hospital in Ibadan, Nigeria. Data were obtained from 25 people living with chronic conditions through in-depth interviews. We thematically analysed the transcripts inductively and deductively. Dedoose qualitative data management software was used to manage the data.

FINDINGS

Emerging subthemes were grouped into two major themes: Hesitancy towards the COVID-19 vaccine related to biological concerns and those related to sociopolitical issues. Hesitancy towards the COVID-19 vaccine associated with biological factors included: (1) concerns over the COVID-19 vaccine worsening the underlying chronic condition; (2) fear of harmful physiological consequences; (3) concerns over insufficient testing of vaccine for safety and (4) perceived vaccine infectiveness. Sociopolitical factors were related to (1) misconceptions of vaccines as a treatment for those with COVID-19; (2) mistrust of manufacturers ('the whites'); (3) mistrust of government and (4) COVID-19 misinformation.

CONCLUSION

Public health education on the nature and benefits of the COVID-19 vaccine is urgently needed among people living with chronic non-communicable diseases. These measures could improve COVID-19 vaccine uptake and healthcare usage in general. Paying attention to these factors could have implications for the management of the next global pandemic requiring mass vaccination.

CD4 + Count: a Variable to Be Considered to Prioritize COVID-19 Vaccination in PLHIV

The outbreak of the COVID-19 propagates, pressurizing the healthcare system by emphasizing and worsening the inequities. While many vaccines have shown excellent efficacy in protecting the general public from the COVID-19 infection, the efficacy of these vaccines for people living with HIV (PLHIV), especially those having a different range of CD4 + T-cell, has yet to be thoroughly investigated. Few studies have uncovered the escalated infection and death rates due to the COVID-19 infection in individuals with low CD4 + T-cells. Additionally, PLHIV has a low CD4 + count; furthermore, specific CD4 + T cells for coronavirus have a vigorous Th1 role and are related to the protective antibody responses. Follicular helper T cells (TFH) are vulnerable to HIV and virus-specific CD4 & CD8 T-cells which are essential for viral infection clearance and defective immune responses which further contributes to the development of illness. The specific CD8 & CD4 + T-cell reaction to severe acute respiratory syndrome-coronavirus-2 (SARS-CoV-2) was identified in almost all COVID-19 recovered individuals, which is related to the size of antibodies of immunoglobulin G. It has previously been demonstrated that PLHIV has decreased responses to certain vaccines and that these responses are reliant on CD4 + T-cell levels. COVID-19 vaccines will likely have a lower response or limited effect, in PLHIV having low CD4 + T-cells.

Vaccine hesitancy and the willingness to recommend the COVID-19 vaccine to children in a rural country on the United States-Mexico border

Introduction

As of October 26, 2022, only 9% of children in the United States aged 6 months to 4 years have received at least one dose of COVID-19 vaccine despite FDA approval since June 17, 2022. Rates are better yet still low for children aged 5 to 11 years as nearly 30% were fully vaccinated as of August 23, 2022. Vaccine hesitancy among adults is one of the major factors affecting low vaccine uptake rates in children against COVID-19, yet most studies examining vaccine hesitancy have targeted school-age and adolescent children.

Methods

With the aim of assessing the willingness to recommend the COVID-19 vaccination to children under 5 years compared to children 5 to 12 years of age, a county-wide survey was conducted between January 11 and March 7, 2022, among adults on the United States-Mexico border.

Results

Among the 765 responses, 72.5% were female and 42.3% were Latinx. The most significant factor associated with likelihood to recommend the COVID-19 vaccine to children less than 5 years and 5-12 years of age was adult vaccination status. Ordinal logistic regression also indicated that ethnicity, primary language, being a parent, previous COVID-19 infection, and concern about getting COVID-19 in the future were significantly associated with likelihood of COVID-19 vaccine recommendation to children < 5 years and 5-12 years old.

Discussion

This study found high consistency among respondents in their willingness to vaccinate children aged < 5 years compared with children aged 5-12 years. Our findings support public health strategies that target adult vaccinations as an avenue to improve childhood vaccinations for young children.

A Review of Pathology and Analysis of Approaches to Easing Kidney Disease Impact: Host-Pathogen Communication and Biomedical Visualization Perspective : Advanced Microscopy and Visualization of Host-Pathogen Communication

INTRODUCTION

In addition to affecting the upper respiratory tract, severe acute respiratory syndrome-coronavirus (SARS-CoV) and SARS-CoV-2) can target kidneys resulting in disease impact. There is a lack of effective treatment for SARs-CoV and SARS-CoV-2, and so one approach could be to consider to lower the probable risk and onset of disease amongst immunocompromised and immunosuppressed individuals and patients. Angiotensin Converting Enzyme 2 (ACE2) has a promising impact including acting against SARs-CoV and SARS-CoV-2 symptoms. Current literature states that ACE2 is expressed across several physiological systems, including the lungs, cardiovascular, gut, kidneys, and central nervous, and across endothelia.

AIMS

This chapter seeks to investigate causes and potential mechanisms during SARS infection (CoV-2), renal interaction, and the effects of acute kidney Injury (AKI).

OBJECTIVES

This chapter will provide an overview of microscopy and visualization of host-pathogen communication and principles of ACE2 in the context of immunology and impact on renal pathophysiology.

DESIGN

This chapter focuses to provide basic principles of ACE2 and the analysis and effect of immunology and pathological components important in relation to SARs infection.

DISCUSSION

There has been a surge in literature surrounding mechanisms attributing to SARS-CoV and SARS-CoV-2 action on immune response to pathogens. There is an advantage to implementing ACE2 treatment to improve immune response against infection.

CONCLUSION

ACE2 may provide appropriate strategies for the management of symptoms that relate to SARS-CoV and SARS-CoV-2 in most immunocompromised or immunosuppressed patients. Visualization of ACE2 action can be achieved through microscopy to understand host-pathogen communication.

"None of it was especially easy": improving COVID-19 vaccine equity for people with disabilities

OBJECTIVES

Our study aimed to (1) identify barriers to equitable access to COVID-19 vaccines for Canadians with disabilities and (2) present recommendations made by study participants to improve immunization programs in terms of inclusivity and equitable access.

METHODS

We invited Manitobans living with disabilities to participate in online focus groups. Focus groups were conducted across multiple disability experiences, although one focus group was advertised explicitly as offering simultaneous American Sign Language interpretation to encourage people who are d/Deaf or hard of hearing to participate. Participants were asked about their perspectives on the management of COVID-19 public health measures and vaccination program rollout. Participants were also asked about barriers and facilitators of their vaccination experiences and if they had recommendations for improvement.

RESULTS

The participants identified three areas where they encountered routine barriers in accessing the COVID-19 vaccines: (1) vaccine information and appointment booking, (2) physical access to vaccination clinics, and (3) vaccination experience. While participants identified specific recommendations to improve vaccine accessibility for people with disabilities, the single most crucial advice consistently identified was to involve people with disabilities in developing accessible immunization programs.

CONCLUSION

Meaningful engagement with people living with disabilities in immunization program planning would help ensure that people with disabilities, who already face significant challenges due to COVID-19, are offered the same protections as the rest of the population. These recommendations could be easily transferred to the administration of other large-scale immunization campaigns (e.g., influenza vaccines).

COVID-19 intranasal vaccines: current progress, advantages, prospects, and challenges

Multiple vaccines have recently been developed, and almost all the countries are presently vaccinating their population to tackle the COVID-19 pandemic. Most of the COVID-19 vaccines in use are administered via intramuscular (IM) injection, eliciting protective humor and cellular immunity. COVID-19 intranasal (IN) vaccines are also being developed that have shown promising ability to induce a significant amount of antibody-mediated immune response and a robust cell-mediated immunity as well as hold the added ability to stimulate protective mucosal immunity along with the additional advantage of the ease of administration as compared to IM injected vaccines. By inducing secretory IgA antibody responses specifically in the nasal compartment, the intranasal SARS-CoV-2 vaccine can prevent virus infection, replication, shedding, and disease development, as well as possibly limits virus transmission. This article highlights the current progress, advantages, prospects, and challenges in developing intranasal COVID-19 vaccines for countering the ongoing pandemic.

Adverse events following immunization associated with coronavirus disease 2019 (COVID-19) vaccines: A descriptive analysis from VigiAccess

This study assessed adverse events following immunizations (AEFIs) reported on COVID-19 vaccines in VigiAccess and determined the reporting trends across all continents of the world. The study was cross-sectional quantitative in design. VigiAccess was searched on 10 November 10 2021 for reported adverse events following the introduction of COVID-19 vaccines. After entering the search term, "COVID-19 vaccines" in VigiAccess, AEFIs associated with nine approved brands of COVID-19 vaccines had been documented in the database. Data were captured among age groups, sex, and continents of the world and analyzed using Statistical Package for Social Sciences (SPSS) version 25. Overall, 2,457,386 AEFIs had been reported in VigiAccess at the time of the search. No causal associations could be established between the vaccines and the AEFIs. The public accessing VigiAccess data should therefore be made aware of this in order to not falsely attribute AEFIs to COVID-19 vaccines when assessing the database.

Perspectives on the COVID-19 vaccine uptake: a qualitative study of community members and health workers in Zambia

OBJECTIVE

Since introduction of the programme in April 2021, COVID-19 vaccine uptake has been low at less than 20%. This study explored community members' and health workers' perspectives on the COVID-19 vaccine uptake and its influencing factors in Zambia.

STUDY DESIGN

A qualitative study employing focus group discussions (FGDs) and in-depth interviews (IDIs).

STUDY SETTING

Sixteen primary healthcare facilities selected from Lusaka, Copperbelt, Central and Southern provinces.

PARTICIPANTS

A total of 32 FGDs comprising local community members and 30 IDIs including health workers, traditional, religious and civic leaders (n=272). FGDs were separated based on age (youth and adults), sex (male and female) and place of residence (urban and rural).

RESULTS

Both FGD and IDI participants agreed that vaccine uptake was low. Limited knowledge, access to information, myths and misconceptions, negative attitude, low-risk perception and supply in remote areas affected vaccine uptake. Overall, FGD participants expressed limited knowledge about the COVID-19 vaccine compared with health workers. Further, FGD participants from urban sites were more aware about the vaccine than those from rural areas. Health workers perceived the vaccine to be beneficial; the benefits included prevention of infection and limiting the severity of the disease. Moreover, FGD participants from urban sites expressed a negative attitude towards the vaccine. They believed the vaccine conferred no benefits. By contrast, participants from rural communities had mixed views; they needed more information about the vaccine benefits. Participants' attitude seems to have been influenced by personal or family experience with the COVID-19 disease or vaccination; those who had experienced the disease had a more positive attitude. In contrast, most young people believed they were not at risk of the COVID-19 disease. Misinformation from social media influenced their attitude.

CONCLUSION

These results provide starting points for future policies and interventions for increasing COVID-19 vaccine uptake.

Insights on COVID-19 Vaccination in Portugal: A Qualitative Study among Health Professionals and Teachers

BACKGROUND

Vaccination against COVID-19 has had a major impact over the course of the pandemic, leading to a reduced number of hospitalizations and deaths. However, the mass vaccination process has been accompanied by skepticism and hesitancy since its beginning. As health professionals and teachers are important public health actors who can strongly intervene to reduce vaccination hesitancy among their patients and students, respectively, this study aimed to assess their main perceptions towards COVID-19 vaccination.

METHODS

Two focus group sessions, one with health professionals and the other with teachers, were conducted according to the COREQ checklist. Qualitative data were analyzed through theoretical thematic analysis.

RESULTS

In general, none of the groups showed vaccine hesitancy, although both groups had concerns regarding the safety and efficacy of the vaccines. The main concerns of health professionals were mostly related to the long-term impact of the COVID-19 pandemic, while teachers were more worried about the lack of access to reliable information about the COVID-19 vaccination.

CONCLUSIONS

It is plausible to conclude that it is imperative to provide clear and accurate information for the population in order to avoid vaccination hesitancy.

Assessing the Impact of Use and Trust in Different Sources of Information on COVID-19 Vaccination Uptake in Saudi Arabia (SA) Using the COVID-19 Vaccine Hesitancy and Resistance in SA (CoV-HERSA) Tool

COVID-19 vaccination has been the cornerstone measure to tackle the severe morbidity and mortality of the ongoing global pandemic. However, vaccine hesitancy and resistance were observed in different populations, including Saudi Arabia (SA), yet such hesitancy was not accurately measured, nor were its influencing factors determined. The COVID-19 Vaccine Hesitance and Resistance in SA (CoV-HERSA) tool was developed, validated, and distributed to 387 participants to accurately measure their COVID-19 vaccine hesitancy and its influencing factors. Different chronic conditions affected participants' CoV-HERSA differently, with those having autoimmune disorders having the highest CoV-HERSA scores. Previous exposure to COVID-19 significantly increased the CoV-HERSA scores. The use and trust of the different sources of information had a significant influence on the CoV-HERSA scores. Those who used newspapers and healthcare practitioners as their source of information had the highest CoV-HERSA scores, while those who relied on family/friends had the lowest scores. The CoV-HERSA is a validated tool that accurately reflects participants' willingness and hesitancy to COVID-19 vaccination and can be used to explore the influence of different factors on the participants' attitudes towards the COVID-19 vaccine.

Informed Consent in Mass Vaccination against COVID-19 in Romania: Implications of Bad Management

Informing patients and obtaining valid informed consent were significant challenges for the COVID-19 immunization program. In Romania, the authorities issued a strategy for activities regarding vaccination against COVID-19, including the informed consent procedure. The lack of legal preparedness was evident when the medical personnel at the vaccination centers were provided with informed consent forms that did not respect the existing legal requirements. In addition, the protocol for persons seeking vaccination stated that the patient was supposed to receive the informed consent form from the receptionist in order to read and sign it. We analyzed the legal implications and the malpractice litigation risk associated with this practice. Due to essential deficiencies and in the absence of an official enactment of new regulations, we conclude that the vaccination consent process did not comply with the legal requirements. Implications include medical personnel’s legal liability, loss of malpractice insurance coverage, and public mistrust that may have contributed to a low vaccination rate. Given the potential of future pandemics or other health crises, this may be a valuable lesson for developing better legal strategies.

Human coronaviruses: The emergence of SARS-CoV-2 and management of COVID-19

To date, a total of seven human coronaviruses (HCoVs) have been identified, all of which are important respiratory pathogens. Recently, severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2), the causative agent of coronavirus disease 2019 (COVID-19), has led to a global pandemic causing millions of infections and deaths. Here, we summarize the discovery and fundamental virology of HCoVs, discuss their zoonotic transmission and highlight the weak species barrier of SARS-CoV-2. We also discuss the possible origins of SARS-CoV-2 variants of concern identified to date and discuss the experimental challenges in characterizing mutations of interest and propose methods to circumvent them. As the COVID-19 treatment and prevention landscape rapidly evolves, we summarize current therapeutics and vaccines, and their implications on SARS-CoV-2 variants. Finally, we explore how interspecies transmission of SARS-CoV-2 may drive the emergence of novel strains, how disease severity may evolve and how COVID-19 will likely continue to burden healthcare systems globally.

Myth and Misinformation on COVID-19 Vaccine: The Possible Impact on Vaccination Refusal Among People of Northeast Ethiopia: A Community-Based Research

Background

To prevent the spread of COVID-19 and carry out a successful vaccination program especially in low-income countries, people must have faith on scientists and health experts. The most significant challenge to vaccination programs’ efficacy is now regarded to be a lack of information and trust in immunization due to myths and misinformation spread in the community. Therefore, this study aimed to identify the myth and misconceptions that are propagated about the COVID-19 vaccine, the refusal rate of the vaccine and determine the factors associated with COVID-19 vaccine refusal.

Methods

A community-based cross-sectional study was conducted from December 7 to January 25, 2022. Face-to-face interviews with a standardized questionnaire were used to collect data on the variables. Data were entered into the statistical tool Epi data version 3.1 and then exported to SPSS version 25 for analysis. Binary logistic regression, both bivariable and multivariable, was conducted. In the multivariable binary logistic regression model, the adjusted odds ratio with 95% confidence interval was used to declare statistically significant factors based on a p value less than 0.05.

Results

Out of the total 574 respondents, 60.3% [95% CI (55.5, 64.2)] of them refused to take COVID-19 vaccine. In this study, respondent’s age [AOR = 2.1 at 95% CI: (1.8, 4.9)], perception on COVID-19 vaccine [AOR = 3.0 at 95 CI: (1.9, 4.6)], eHealth literacy [AOR = 2.7 at 95% CI: (1.7, 4.1)], source of information about the vaccine [AOR = 2.9 at 95% CI: (1.9, 4.4)], computer literacy [AOR = 2.8 at 95 CI: (1.8, 4.2)] and frequency of internet use [AOR = 2.2 at 95 CI: (1.8, 5.3)] were identified as determinant factors for COVID-19 vaccine acceptance.

Conclusion

Factors like eHealth literacy, source of information about the vaccine, frequency of internet use, respondent’s perception about the vaccine and computer literacy were found to be determinant factors for COVID-19 vaccine acceptance.

Omicron variant (B.1.1.529) and its sublineages: What do we know so far amid the emergence of recombinant variants of SARS-CoV-2?

Since the start of the COVID-19 pandemic, numerous variants of SARS-CoV-2 have been reported worldwide. The advent of variants of concern (VOCs) raises severe concerns amid the serious containment efforts against COVID-19 that include physical measures, pharmacological repurposing, immunization, and genomic/community surveillance. Omicron variant (B.1.1.529) has been identified as a highly modified, contagious, and crucial variant among the five VOCs of SARS-CoV-2. The increased affinity of the spike protein (S-protein), and host receptor, angiotensin converting enzyme-2 (ACE-2), due to a higher number of mutations in the receptor-binding domain (RBD) of the S-protein has been proposed as the primary reason for the decreased efficacy of majorly available vaccines against the Omicron variant and the increased transmissible nature of the Omicron variant. Because of its significant competitive advantage, the Omicron variant and its sublineages swiftly surpassed other variants to become the dominant circulating lineages in a number of nations. The Omicron variant has been identified as a prevalent strain in the United Kingdom and South Africa. Furthermore, the emergence of recombinant variants through the conjunction of the Omicron variant with other variants or by the mixing of the Omicron variant's sublineages/subvariants poses a major threat to humanity. This raises various issues and hazards regarding the Omicron variant and its sublineages, such as an Omicron variant breakout in susceptible populations among fully vaccinated persons. As a result, understanding the features and genetic implications of this variant is crucial. Hence, we explained in depth the evolution and features of the Omicron variant and analyzed the repercussions of spike mutations on infectiousness, dissemination ability, viral entry mechanism, and immune evasion. We also presented a viewpoint on feasible strategies for precluding and counteracting any future catastrophic emergence and spread of the omicron variant and its sublineages that could result in a detrimental wave of COVID-19 cases.

Knowledge and Acceptance of the COVID-19 Vaccine for COVID-19 Disease Prevention among the Indian Population: A Mixed-Method Study

Aim: To assess the Knowledge and Acceptance of the COVID vaccine among the Indian population. Materials and methods: The present mixed-method study was conducted in two phases. The first phase: quantitative assessment of knowledge and acceptance for the COVID-19 vaccine using an E survey (N = 606). The second phase: qualitative assessment using semi-structured face-to-face interviews with the study participants (N = 30) and assessment was done using a thematic approach. Study participants were selected using the convenience sampling method. Results: It was found that a large proportion of subjects in the 16−25 year of age group knew the cause of disease. But knowledge about its transmission process was found to be more in >60 years of age gap and almost all the participants in all the age group preferred Covishield. The vaccine acceptance rate was found to be low as compared to the knowledge. Conclusion: Most study participants were found to have satisfactory knowledge, but acceptance rate was comparatively lesser. Hence, more information and awareness campaigns must be launched reassuring the population about vaccine safety.

Vaccine Hesitancy: Contemporary Issues and Historical Background

Vaccination, despite being recognized as one of the most effective primary public health measures, is viewed as unsafe and unnecessary by an increasing number of individuals. Anxiety about vaccines and vaccination programs leading to vaccine hesitancy results from a complex mix of social and political influences, cultural and religious beliefs, the availability of and ability to interpret health and scientific information, and personal and population experiences of health systems and government policies. Vaccine hesitancy is becoming a serious threat to vaccination programs, and was identified as one of the World Health Organization’s top ten global health threats in 2019. The negative impact of anti-vaccination movements is frequently cited as one of the major reasons for rising vaccine hesitancy amongst the general public world-wide. This review discusses the various issues surrounding vaccine hesitancy and the anti-vaccine movement, starting with the definitions of vaccine hesitancy and the anti-vaccine movement in their early history and in the modern era, before discussing the key drivers of vaccine hesitancy, particularly across different regions of the world, with a focus on various countries with low-, middle-, or high-income economies with different socio-economic populations. The review concludes with the impact of vaccine hesitancy on herd immunity and social, psychological, and public health measures to counter vaccine hesitancy.

COVID-19 vaccine acceptance and hesitancy among the general population of Pakistan: a population-based survey

OBJECTIVES

This study aims to determine the COVID-19 vaccination coverage and the factors associated with vaccine acceptance and hesitancy in the general population of Pakistan.

SETTING

This population-based study covers all major areas of Pakistan, including Sindh, Punjab, Khyber Pakhtunkhwa and Baluchistan provinces and the capital Islamabad.

PARTICIPANTS

A total of 541 male and female Pakistani adults above 18 years were interviewed to determine the COVID-19 vaccination coverage and understand the factors associated with vaccine acceptance and hesitancy.

OUTCOME

The outcome was COVID-19 vaccination status (not vaccinated or vaccinated).

RESULTS

Of 541 participants, 227 (41.96%) were non-vaccinated and 314 (58.04%) were vaccinated. Two-thirds of the participants from both the non-vaccinated and vaccinated groups (185 (81.50%) vs 236 (75.16%), p=0.008) reside in Sindh. Nearly one-third of participants from both groups were ever infected with COVID-19 (77 (33.92%) and 90 (28.66%)). The odds of COVID-19 vaccination among the age group 34-42 years were 1.75 times higher (95% CI 1.35 to 2.09, p=0.008) than the other age groups. The odds of COVID-19 vaccination among those with COVID-19 ever-infected family members were 1.87 times higher (95% CI 1.56 to 2.34, p=0.032) than those with uninfected family members.

CONCLUSIONS

Targeted interventions for subsets of populations reluctant to vaccination can improve vaccine coverage. Moreover, advocacy and explaining the public health benefits of vaccination can enhance the coverage in Pakistan.

Access to the COVID-19 Vaccine

As of 31 August 2022, 599,825,400 confirmed coronavirus disease 2019 (COVID-19) cases and 6,469,458 deaths have been reported globally [...].

A Mixed-Methods Study of COVID-19 Vaccine Acceptance and Its Determinants Among Pregnant Women in Northeast Ethiopia

Background

The World Health Organization recommends that pregnant women should receive a vaccine against COVID-19. However, COVID-19 vaccine hesitance was one of the barriers to delivering the vaccine, and this issue was not well addressed in Ethiopia. Therefore, we aimed to determine the prevalence of COVID-19 vaccination acceptability and the factors that influence it among pregnant women in Northeast Ethiopia.

Methods

A mixed-methods approach comprising both qualitative interviews and a quantitative survey was conducted from January 1-30, 2022. For the quantitative part, a multi-stage sampling technique was used to recruit the study participants (n=702). Data was collected through face-to-face interviews using pretested and structured questionnaires. Bivariate and multivariable logistic regression analyses were employed. The statistical difference was considered at P-0.05, and the strength of association was assessed by the odds ratio and respective 95% confidence intervals. For the qualitative part, 18 participants were selected purposively for in-depth interviews, an interviewer guide was used for data collection and thematic content analysis was performed.

Results

In this study, a total of 702 pregnant women were included with the response rate of 100%. The rate of COVID-19 vaccine acceptance was 22.6% (95% CI: 19.6%, 25.9%). The husbands' educational level (AOR = 1.99, 95% CI: 1.09, 3.64), chronic medical illness (AOR = 2.41, 95% CI: 1.28, 4.54), positive attitude (AOR = 1.59, 95% CI: 1.09, 2.31), and good practice of COVID-19 preventive measures (AOR = 1.59, 95% CI: 1.09, 2.31) were determinant factors of COVID-19 vaccine acceptance. According to the qualitative findings, the most common reasons for COVID-19 vaccine hesitancy were fear of fetal side effects, misconceptions about the vaccine, and religious beliefs.

Conclusion

In this study, the acceptability of the COVID-19 vaccine was low. Therefore, health professionals should disseminate accurate vaccination information and address misinformation to boost vaccine acceptance among pregnant women.

Solid Organ Rejection following SARS-CoV-2 Vaccination or COVID-19 Infection: A Systematic Review and Meta-Analysis

Background: Solid organ rejection post-SARS-CoV-2 vaccination or COVID-19 infection is extremely rare but can occur. T-cell recognition of antigen is the primary and central event that leads to the cascade of events that result in rejection of a transplanted organ. Objectives: To describe the results of a systematic review for solid organ rejections following SARS-CoV-2 vaccination or COVID-19 infection. Methods: For this systematic review and meta-analysis, we searched Proquest, Medline, Embase, Pubmed, CINAHL, Wiley online library, Scopus and Nature through the Preferred Reporting Items for Systematic Reviews and Meta Analyses (PRISMA) guidelines for studies on the incidence of solid organ rejection post-SARS-CoV-2 vaccination or COVID-19 infection, published from 1 December 2019 to 31 May 2022, with English language restriction. Results: One hundred thirty-six cases from fifty-two articles were included in the qualitative synthesis of this systematic review (56 solid organs rejected post-SARS-CoV-2 vaccination and 40 solid organs rejected following COVID-19 infection). Cornea rejection (44 cases) was the most frequent organ observed post-SARS-CoV-2 vaccination and following COVID-19 infection, followed by kidney rejection (36 cases), liver rejection (12 cases), lung rejection (2 cases), heart rejection (1 case) and pancreas rejection (1 case). The median or mean patient age ranged from 23 to 94 years across the studies. The majority of the patients were male (n = 51, 53.1%) and were of White (Caucasian) (n = 51, 53.7%) and Hispanic (n = 15, 15.8%) ethnicity. A total of fifty-six solid organ rejections were reported post-SARS-CoV-2 vaccination [Pfizer-BioNTech (n = 31), Moderna (n = 14), Oxford Uni-AstraZeneca (n = 10) and Sinovac-CoronaVac (n = 1)]. The median time from SARS-CoV-2 vaccination to organ rejection was 13.5 h (IQR, 3.2–17.2), while the median time from COVID-19 infection to organ rejection was 14 h (IQR, 5–21). Most patients were easily treated without any serious complications, recovered and did not require long-term allograft rejection therapy [graft success (n = 70, 85.4%), graft failure (n = 12, 14.6%), survived (n = 90, 95.7%) and died (n = 4, 4.3%)]. Conclusion: The reported evidence of solid organ rejections post-SARS-CoV-2 vaccination or COIVD-19 infection should not discourage vaccination against this worldwide pandemic. The number of reported cases is relatively small in relation to the hundreds of millions of vaccinations that have occurred, and the protective benefits offered by SARS-CoV-2 vaccination far outweigh the risks.

Role of natural products towards the SARS-CoV-2: A critical review

Despite the fact that various therapeutic compounds are being investigated, there is still a scarcity of effective and reliable therapeutic regimens to treat COVID-19. Ever since the COVID-19 pandemic, a diversity of traditional herbal treatments has been investigated to cure infected people, either alone or in conjunction with mainstream pharmaceuticals, with encouraging outcomes. In this article, we look at the latest research on the usage of natural products to alleviate the severity of COVID-19. To determine the activity of the natural products, act against SARS-CoV-2 to various targets like M^pro, ACE-II, papain-like, chymotrypsin-like proteases, and some antiviral targets. The processes underlying this preventative or therapeutic action are also examined. We used PubMed, Scopus, Google Scholar, and the WHO site to perform our review. The anti-SARS-CoV-2 impacts of various herbal extracts and purified compounds may be mediated via direct prevention of viral replication or entrance. Interestingly, certain items might avert SARS-CoV-2 from infecting human cells by blocking the ACE-2 protein or the serine protease TMPRRS2. Natural products have also been stated to suppress proteins intricate in the virus life cycle, like papain-like and chymotrypsin-like proteases. To conclude, natural products can be used alone or in combination as remedies or treatments for COVID-19. In addition, their compositions may provide insight into the development of effective and reliable antiviral drugs.

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The COVID-19 pandemic caused by a novel coronavirus SARS-CoV-2, resulted in thousands of deaths across the world.

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Globally, numerous studies and researchers have recently started fighting this virus.

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In this article, we look at the latest research on the usage of natural products to alleviate the severity of COVID-19.

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The anti-SARS-CoV-2 impacts of various herbal extracts and purified compounds may be mediated via direct prevention of viral replication or entrance.