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14 Ιουλ 2021 · Based on what we know so far, vaccines are proving effective against existing variants, especially at preventing severe disease, hospitalization and death. However, some variants are having a slight impact on the ability of vaccines to guard against mild disease and infection.
21 Ιουλ 2021 · Lopez Bernal and colleagues from Public Health England (PHE) now describe in the Journal 2 an alternative nonrandomized study comparing the effectiveness of the BNT162b2 and ChAdOx1 nCoV-19...
16 Νοε 2020 · Efficacy: mRNA is rapidly degraded in the body, and cells don't readily take up foreign mRNA. Recent technology has modified the mRNA molecule to make it more stable and packaged the molecules in fats (called lipids), increasing cell delivery efficiency.
10 Φεβ 2023 · Our analyses indicate that vaccine effectiveness generally decreases over time against SARS-CoV-2 infections, hospitalisations, and mortality. The baseline vaccine effectiveness levels for the omicron variant were notably lower than for other variants.
15 Μαΐ 2023 · In this study, we calculated risk ratios for vaccination as compared with no vaccination and estimated the vaccine effectiveness as one minus the risk ratio. To measures differences in parameters of socio-demographic characteristics, Wilcoxon rank-sum and chi-square tests were used as appropriate.
All the current evidence tells us that getting vaccinated is safer than not getting vaccinated. Vaccination is the most important thing we can do to protect ourselves and our children against ill health. They prevent millions of deaths worldwide every year.
16 Οκτ 2023 · How effective is it? Novavax has about the same efficacy as other COVID vaccines, says infectious disease researcher Kirsten Lyke of the University of Maryland.
