Background High rates of vaccination worldwide are required to establish a herd immunity
and stop the current COVID-19 pandemic evolution. Vaccine hesitancy is a major barrier in …

Highlights•COVID-19 vaccine development has accelerated at an incredible rate with 105
vaccines in clinical development and 18 approved for emergency use.•This is the first time in …

Vaccine hesitancy (VH) is considered a top-10 global health threat. The concept of VH has
been described and applied inconsistently. This systematic review aims to clarify VH by …

Herd immunity through vaccination is a key measure to control COVID-19 pandemic.
However, vaccine hesitancy remains a public health threat, which is still common among …

Abstract Coronavirus disease 2019 (COVID-19) continues to be a pandemic threat that is
generating a constant state of alert in manifold countries. One of the strategies of defense …

Background The global pandemic of COVID-19 has brought huge changes to people's
lifestyles, college students have also been affected seriously. Evidence about these …

One of the problems hardly clarified in Coronavirus Disease 2019 (COVID-19) pandemic
crisis is to identify factors associated with a lower mortality of COVID-19 between countries …

This study suggests a metrics that evaluates the preparedness of nations to cope with
pandemic crisis, such as COVID-19. Results suggest, between European countries, that …

Abstract The Coronavirus Disease 2019 (COVID-19) continues to generate a constant
pandemic threat with new mutations of the viral agent (SARS-CoV-2) that create …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is responsible for the
coronavirus disease 2019 (COVID-19) pandemic that emerged in December 2019 in Wuhan …