RT Journal Article SR Electronic(1) A1 Nicolay, Nathalie A1 Innocenti, Francesco A1 Beauté, Julien A1 Učakar, Veronika A1 Grgič Vitek, Marta A1 Poukka, Eero A1 Hannila-Handelberg, Tuula A1 Gauci, Charmaine A1 Melillo, Tanya A1 Georgakopoulou, Theano A1 Jarkovsky, Jiri A1 Slezak, Pavel A1 Delgado-Sanz, Concepción A1 Olmedo-Lucerón, Carmen A1 Suija, Heleene A1 Liausediene, Rasa A1 O’Lorcain, Piaras A1 Murphy, Niamh A1 Peralta-Santos, André A1 Casaca, Pedro A1 Gregoriou, Ioanna A1 Bundle, Nick A1 Spiteri, Gianfranco A1 Ravasi, Giovanni YR 2021 T1 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 JF Eurosurveillance VO 26 IS 48 SP 2101030 OP DO https://doi.org/10.2807/1560-7917.ES.2021.26.48.2101030 UL https://www.eurosurveillance.org/content/10.2807/1560-7917.ES.2021.26.48.2101030