… booster vaccinations are currently recommended in some countries based on eligibility
and availability, and vaccines effective against new variants are in development …

… the effectiveness of a third dose of an mRNA COVID-19 vaccine—… vaccine is effective
in preventing severe COVID-19-related outcomes. Compared with two doses of the vaccine …

… This study found higher vaccine effectiveness for more serious COVID-19 disease (greater …
BNT162b2 and mRNA-1273 effectiveness against the Alpha and Beta variants 4,5,24,28 . …

… to our understanding of COVID-19 vaccine decision-making on a global scale and can
identify potential pitfalls in the roll-out of COVID-19 vaccines with lower effectiveness or safety. …

… high protection of COVID-19 vaccines against moderate and severe COVID-19 resulting in
… of full COVID-19 vaccination and continued benefits of COVID-19 vaccination during Delta …

… from Covid-19. In a secondary analysis, we assessed vaccine effectiveness among patients
who had received one vaccine dose as compared with those who had received two doses. …

… receivers of vaccination. Here we present preliminary population based vaccine effectiveness
(… -adjusted VE for the BNT162b2 mRNA Covid-19 Vaccine from Pfizer/BioNTech with 95% …

… acceptance was positively related to COVID-19 knowledge and worries and fears … COVID-19
vaccine effectiveness, acceptance, drivers of vaccine uptake decision-making, and vaccine …

… to lower the risk of hospitalization for COVID-19. This study reports results that support early
estimates of the effectiveness of bivalent COVID-19 boosters against an array of COVID-19 …

… immunization showed better effectiveness than homologous booster … COVID-19 vaccines
could effectively protect COVID-19 caused by Delta and Omicron variants but was less effective …