Suetens, CarlKinross, PeteGallego Berciano, PilarArroyo Nebreda, VirginiaHassan, ElineCalba, ClémentineFernandes, EugeniaPeralta-Santos, AndreCasaca, PedroShodu, NathalieDequeker, SaraKontopidou, FloraPappa, LampriniKacelnik, OliverBørseth, Anita WangO’Connor, LoisGarvey, PatriciaLiausedienė, RasaValintelienė, RolandaErnst, CorinnaMossong, JoëlŠtefkovičová, MáriaProstináková, ZuzanaDanielsen, Ann CarolineMougkou, AikateriniLamb, FavelleCenciarelli, OrlandoMonnet, Dominique LPlachouras, Diamantis2022-05-092022-05-092021-12Euro Surveill. 2021 Dec;26(49):2101070.1560-7917http://hdl.handle.net/20.500.12105/14340We collected data from 10 EU/EEA countries on 240 COVID-19 outbreaks occurring from July-October 2021 in long-term care facilities with high vaccination coverage. Among 17,268 residents, 3,832 (22.2%) COVID-19 cases were reported. Median attack rate was 18.9% (country range: 2.8-52.4%), 17.4% of cases were hospitalised, 10.2% died. In fully vaccinated residents, adjusted relative risk for COVID-19 increased with outbreak attack rate. Findings highlight the importance of early outbreak detection and rapid containment through effective infection prevention and control measures.engVoRhttp://creativecommons.org/licenses/by/4.0/COVID-19Long-term care facilitiesOutbreaksVaccinesIncreasing risk of breakthrough COVID-19 in outbreaks with high attack rates in European long-term care facilities, July to October 2021Atribución 4.0 Internacional348869462649210107010.2807/1560-7917.ES.2021.26.49.2101070Eurosurveillanceopen access