We aimed to summarize reliable medical evidence by the meta-analysis of all published
clinical trials that investigated the safety, tolerability, and immunogenicity of vaccine …

Objectives: This umbrella meta-analysis aims to provide comprehensive and synthesized
evidence regarding the effectiveness and safety of COVID-19 vaccinations based on current …

We performed a review study according to recent COVID-19 vaccines' real-world data to
provide comparisons between COVID-19 vaccines regarding their relative efficacy. Although …

Background There have been concerns about COVID-19 vaccination safety among frail
older individuals. We investigated the relationship between COVID-19 mRNA vaccination …

COVID-19 vaccines are safe and reduce COVID-19 mortality. The World Health
Organization (WHO) recommends that countries prioritize populations at increased risk, eg …

COVID-19 has been spreading worldwide since late 2019. There is no definitive cure to
date. Global vaccination programs are urgently required to confer herd immunity, reducing …

Identifying the factors driving vaccine hesitancy can improve vaccine attitudes and motivate
individuals to have the recommended vaccinations. However, failure to address the issue …

Background High speed of COVID-19 vaccination has raised some concerns about the
safety of the new vaccines. It is of a great importance to perform a review of the safety and …

Abstract In December 2020, COVID-19 vaccination started in many countries, with which the
world community hopes to stop the further spread of the current pandemic. More than 90% of …

Objective To estimate the coronavirus disease 2019 (COVID-19) vaccine effectiveness (VE)
against concerned outcomes in real-world settings. Methods Studies reporting COVID-19 VE …