Angela Mc Rose, Nathalie Nicolay, Virginia Sandonis Martín, Clara Mazagatos, Goranka Petrović, Joaquin Baruch, Sarah Denayer, Lucie Seyler, Lisa Domegan, Odile Launay, Ausenda Machado, Cristina Burgui, Roberta Vaikutyte, F Annabel Niessen, Isabela I Loghin, Petr Husa, Nassera Aouali, George Panagiotakopoulos, Kristin Tolksdorf, Judit Krisztina Horváth, Jennifer Howard, Francisco Pozo, Virtudes Gallardo, Diana Nonković, Aušra Džiugytė, Nathalie Bossuyt, Thomas Demuyser, Róisín Duffy, Liem Binh Luong Nguyen, Irina Kislaya, Iván Martínez-Baz, Giedre Gefenaite, Mirjam J Knol, Corneliu Popescu, Lenka Součková, Marc Simon, Stella Michelaki, Janine Reiche, Annamária Ferenczi, Concepción Delgado-Sanz, Zvjezdana Lovrić Makarić, John Paul Cauchi, Cyril Barbezange, Els Van Nedervelde, Joan O'Donnell, Christine Durier, Raquel Guiomar, Jesús Castilla, Indrė Jonikaite, Patricia Cjl Bruijning-Verhagen, Mihaela Lazar, Regina Demlová, Gil Wirtz, Marina Amerali, Ralf Dürrwald, Mihály Pál Kunstár, Esther Kissling, Sabrina Bacci, Marta Valenciano
IntroductionThe I-MOVE-COVID-19 and VEBIS hospital networks have been measuring COVID-19 vaccine effectiveness (VE) in participating European countries since early 2021.AimWe aimed to measure VE against PCR-confirmed SARS-CoV-2 in patients ≥ 20 years hospitalised with severe acute respiratory infection (SARI) from December 2021 to July 2022 (Omicron-dominant period).MethodsIn both networks, 46 hospitals (13 countries) follow a similar test-negative case-control protocol. We defined complete primary series vaccination (PSV) and first booster dose vaccination as last dose of either vaccine received ≥ 14 days before symptom onset (stratifying first booster into received < 150 and ≥ 150 days after last PSV dose)...
November 2023: Euro Surveillance