Relative vaccine effectiveness against COVID-19 hospitalisation in persons aged ≥ 65 years: results from a VEBIS network, Europe, October 2021 to July 2023

• Author(s): Fontán-Vela, Mario ; Kissling, Esther ; Nicolay, Nathalie ; Braeye, Toon ; Van Evercooren, Izaak ; Holm Hansen, Christian ; Emborg, Hanne-Dorthe ; Fabiani, Massimo ; Mateo-Urdiales, Alberto ; AlKerwi, Ala'a ; Schmitz, Susanne ; Castilla, Jesús ; Martínez-Baz, Iván ; de Gier, Brechje ; Hahné, Susan ; Meijerink, Hinta ; Starrfelt, Jostein ; Nunes, Baltazar ; Caetano, Constantino ; Derrough, Tarik ; Nardone, Anthony ; Monge, Susana ; VEBIS-Lot 4 working group
• Date: 2024
• Persistent ID: http://hdl.handle.net/10400.18/8939
• Origin: Repositório Científico do Instituto Nacional de Saúde
• Subject(s): COVID-19; SARS-CoV-2; Cohort Design; Electronic Health Records; Hospitalisation; VEBIS-Lot 4; Multi-country Study; Vaccine Effectiveness; Europe; Cuidados de Saúde; Vacina; Efetividade; Registos Eletrónicos em Saúde; Infecções Respiratórias
• Document Type: Journal article
• Language: English
• Contributor(s): Repositório Científico do Instituto Nacional de Saúde

Description

Since 2021, the Vaccine Effectiveness, Burden and Impact Studies of coronavirus disease 2019 (COVID-19) and influenza (VEBIS) project monitors vaccine effectiveness (VE) in real-world conditions to inform vaccination programmes in the European Union/European Economic Area (EU/EEA) countries [1]. One project aims to monitor real-time COVID-19 VE using electronic health registries (EHR) in multiple countries, with initial findings previously published [2-4]. We report pooled VE results against hospitalisation due to COVID-19 by number of doses received and time since vaccination in a community-dwelling resident population aged ≥ 65 years between October 2021 and July 2023.