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Background: High rates of vaccination are worldwide required to establish a herd immunity stopping the current COVID-19 pandemic evolution. Vaccine hesitancy is a major barrier in achieving herd immunity across different populations. This study sought to conduct a systematic review of the current literature regarding attitudes and hesitancy to receiving COVID-19 vaccination worldwide. Methods: A systematic literature search was performed in accordance with PRISMA (Preferred Reporting Items for Systematic Reviews and Meta-Analyses) guidelines. Multiple databases were searched, namely PubMed and Web of Science, on February 24th, 2021 using a set of developed keywords. Inclusion criteria included the study to be 1) conducted in English; 2) investigated attitudes, hesitancy, and/or barriers to COVID-19 vaccine acceptability among a given population; 3) utilized validated measurements techniques; 4) have the full text paper available and 5) be peer-reviewed prior to final publication. The Newcastle Ottawa (NOS) scale for cross sectional studies was used to assess the quality of the studies. Results: 73 studies were included in qualitative synthesis. Overall, vaccine acceptance rates ranged from 23.6% in Kuwait to 94.3% in Malaysia and Nepal. A variety of different factors contributed to increased hesitancy, some of which included having negative perception of vaccine efficacy, safety, convenience and price. Some of the consistent socio-demographic groups that were identified to be associated with increased hesitancy included: women, younger participants, less educated, with lower income, with no insurance, living in the rural area and self-identified as a racial/ethnic minority. Conclusions: Vaccine hesitancy rates against COVID-19 vaccine ranged widely among across different populations. Identifying the factors that interplay and result in high hesitancy rates among a population can allow formulating a directed intervention to increase their vaccination uptake rates. Key messages: • It is necessary to understand the factors that contribute to the COVID-19 vaccine hesitancy. • It is important to inform policy-makers and formulate direct intervention measures that will successfully handle the pandemic. [ABSTRACT FROM AUTHOR]

Background In 2019, WHO classified vaccine hesitancy as one of the top 10 threats to global health. Vaccination is an area of excellence in nursing that has gained a new focus and has become a challenge in the provision of care and in the management field. Vaccine hesitation raises questions about mandatory vaccination, individual versus collective freedom that are highlighted in the current context due to the emergence of new vaccines. In this paper, we want to analyze and update knowledge about vaccines hesitancy from an ethical and bioethical perspective. Methods A combination of literature reviews on vaccine refusal/hesitancy, ethics and COVID-19 vaccine confidence, accessed on SciELO and PubMed databases and analysis of documents from General Directorate of Health and Ordem dos Enfermeiros (National Nurses Association). Results Vaccination programs aim is a collective protection. The desirable effects at individual level do not have the same ethical value at collective level, leading to cost-benefit imbalances. Moral conflicts between the individual and the collective, cost-benefit imbalances and the insufficiency of bioethics principles, lead us to the use of other moral values and principles, such as responsibility, solidarity and social justice, as a tool for ethical reflection problems related to COVID-19 vaccines. Conclusions There are no perfect solutions to ethical dilemmas and some optimal solutions could depend the context. In a pandemic situation, one of the most relevant ethical issues is the herd immunity since it leaves public health at risk. Equity and the principle of justice in vaccination campaign are shown daily in the nursing profession. [ABSTRACT FROM AUTHOR]

In this article, we examine what the role of the private sector in times of crises is and whether the private sector is, and can be held to be, accountable. COVID-19 has amplified the difficulties with public–private partnerships and this article addresses several aspects concerning business enterprises, in particular transnational corporations, human rights and health sector activities, highlighting the key aspects to understand and address accountability issues. The article also explores accountability for the private sector, the processes to ensure accountability, and the relevance of regulation and self-regulation. [ABSTRACT FROM AUTHOR]