Determinants of COVID-19 Vaccine Acceptance and Hesitancy: A Systematic Review.

COVID-19 is an infectious disease whose prevention is significantly aided by vaccination, which reduces both case severity and mortality. Despite the safety and efficacy of vaccines, acceptance is not universal, and understanding of the factors influencing vaccination decisions and hesitancy remains limited. This review aims to identify and analyze studies addressing two key questions: what influences the decision to vaccinate and what factors are associated with vaccine hesitancy.

Self-Perception of Mental Health and Exacerbated Social Inequalities Among Vulnerable Older Adults During the COVID-19 Pandemic in Brazil (2021-2023).

This study analyzes the self-perception of mental health of socially vulnerable elderly people during the COVID-19 crisis in Brazil. Conducted across all state capitals from February 2021 to October 2023, it included 366 participants living in various conditions such as camps, street situations, slums, and communities. The average age was 66.

Health condition, income loss, food insecurity and other social inequities among migrants and refugees during the COVID-19 pandemic in Brazil.

Background: Brazil is the destination of many international migrants and refugees and, given the circumstances of their entry into the country, many face difficulties due to the absence of targeted policies. Thus, the objective of this study was to survey the social impact of COVID-19 on international migrants and refugees regarding income loss, food insecurity and other social inequities, and to identify explanatory factors on these aspects.

Methods: This is a cross-sectional, analytical study.

Factors associated with status and self-perceived mental health changes in the face of the COVID-19 pandemic in Brazil.

The SARS-CoV-2-triggered Public Health Emergency of International Importance has significantly contributed to emotional and mental health issues. The aim of this study was to identify factors associated with self-perceived mental health changes while facing the COVID-19 pandemic in Brazil. This was a cross-sectional, descriptive, and analytical study that collected data via a web survey using a validated instrument.

Level of Trust of the Population in the Unified Health System in the Midst of the COVID-19 Crisis in Brazil.

Objective: to assess the level of trust in health services during the COVID-19 pandemic in Brazil.

Methods: A cross-sectional study, carried out between 2020 and 2021, among Brazilians over 18. Nonprobabilistic sampling was used.