Estimation of COVID-19 vaccine effectiveness against hospitalisation in individuals aged ≥ 65 years using electronic health registries; a pilot study in four EU/EEA countries, October 2021 to March 2022
Sentís, Alexis and Kislaya, Irina and Nicolay, Nathalie and Meijerink, Hinta and Starrfelt, Jostein and Martínez-Baz, Iván and Castilla, Jesús and Nielsen, Katrine Finderup and Hansen, Christian Holm and Emborg, Hanne-Dorthe and Nardone, Anthony and Derrough, Tarik and Valenciano, Marta and Nunes, Baltazar and Monge, Susana and the VEBIS-Lot4 working group, Eurosurveillance, 27, 2200551 (2022), https://doi.org/10.2807/1560-7917.ES.2022.27.30.2200551