Background It was urgent and necessary to synthesize the evidence for vaccine
effectiveness (VE) against SARS-CoV-2 variants of concern (VOC). We conducted a …

Billions of doses of coronavirus disease 2019 (COVID-19) vaccines have been administered
globally, dramatically reducing severe acute respiratory syndrome coronavirus 2 (SARS …

Background Emerging and future SARS-CoV-2 variants may jeopardize the effectiveness of
vaccination campaigns. Therefore, it is important to know how the different vaccines perform …

The COVID‐19 pandemic is going into its third year with Europe again being the focus of
major epidemic activity. The present review tries to answer the question whether one can …

Multiple studies of vaccinated and convalescent cohorts have demonstrated that serum
neutralizing antibody (nAb) titers correlate with protection against coronavirus disease 2019 …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is a virus that belongs to
the coronavirus family and is the cause of coronavirus disease 2019 (COVID-19). As of May …

Billions of doses of COVID-19 vaccines have been administered globally, dramatically
reducing SARS-CoV-2 incidence and severity in some settings. Many studies suggest …

Background Currently, promoted vaccinations against SARS-CoV-2 are being given out
globally. However, the occurrence of numerous COVID-19 variants has hindered the goal of …

Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) is the cause of coronavirus
disease 2019 (COVID-19), a major international public health concern. Because of very …

The COVID-19 pandemic has been fueled by SARS-CoV-2 novel variants of concern (VOC)
that have increased transmissibility, receptor binding affinity, and other properties that …