evidence: To understand how the pandemic is evolving, it’s crucial to know how death rates from COVID-19 are affected by vaccination status. The death rate is a key metric that can accurately show how effective vaccines are against severe forms of the disease. This may change over time when there are changes in the prevalence of COVID-19 and because of factors such as waning immunity, new strains of the virus, and the use of boosters. [...] Of 50 vaccinated people, 5 died → the death rate among the vaccinated is 10%. We, therefore, see that the death rate among the vaccinated is 5 times lower than among the unvaccinated.