"The age adjusted risk of death involving COVID-19 was 32 times greater in unvaccinated compared with fully vaccinated people (between 2 January and 24 September 2021). Weekly age-standardised mortality rates (ASMRs) for deaths involving COVID-19 were consistently lower for people who had received two vaccinations compared to one or no vaccinations. For those who had received only one dose of a vaccine, mortality rates were generally lower than for people who were unvaccinated, but higher than for people who had received two vaccine doses.
Some deaths are expected in vaccinated individuals as the number of people who are vaccinated is high and no vaccine is 100% effective. ASMRs account for differences in population size and age of the vaccination status groups over time. While the ASMRs provide evidence that vaccinated individuals have a lower risk of dying of coronavirus than unvaccinated individuals, they cannot be used to determine vaccine effectiveness."