Initial Assessment of the COVID-19 Vaccination's Impact on Case Numbers, Hospitalisations and Deaths in People Aged 80 Years and Older, 15 EU/EEA Countries, December 2020 to May 2021.

Prioritisation of elderly people in COVID-19 vaccina-tion campaigns aimed at reducing severe outcomes in this group. Using EU/EEA surveillance and vaccination uptake, we estimated the risk ratio of case, hospitali-sation and death notifications in people 80 years and older compared with 25-59-year-olds. Highest impact was observed for full vaccination uptake 80% or higher with reductions in notification rates of cases up to 65% (IRR: 0.35; 95% CI: 0.13-0.99), hospitalisations up to 78% (IRR: 0.22; 95% CI: 0.13-0.37) and deaths up to 84% (IRR: 0.16; 95% CI: 0.13-0.20).