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  • Effectiveness of the adapted bivalent mRNA COVID-19 vaccines against hospitalisation in individuals aged ≥ 60 years during the Omicron XBB lineage-predominant period: VEBIS SARI VE network, Europe, February to August, 2023
    Publication . Antunes, Liliana; Mazagatos, Clara; Martínez-Baz, Iván; Gómez, Verónica; Borg, Maria-Louise; Petrović, Goranka; Duffy, Róisín; Dufrasne, François E; Dürrwald, Ralf; Lazar, Mihaela; Jancoriene, Ligita; Oroszi, Beatrix; Husa, Petr; Howard, Jennifer; Melo, Aryse; Pozo, Francisco; Pérez-Gimeno, Gloria; Castilla, Jesús; Machado, Ausenda; Džiugytė, Aušra; Karabuva, Svjetlana; Fitzgerald, Margaret; Fierens, Sébastien; Tolksdorf, Kristin; Popovici, Silvia-Odette; Mickienė, Auksė; Túri, Gergő; Součková, Lenka; Nicolay, Nathalie; Rose, Angela MC; on behalf of the European Hospital Vaccine Effectiveness Group
    The European Medicines Agency (EMA) authorised four adapted bivalent mRNA COVID-19 vaccines for use against COVID-19 in September/October 2022: Comirnaty (BNT162b2; Pfizer-BioNTech) and Spikevax (mRNA-1273; Moderna) Original/Omicron BA.1 and Original/Omicron BA.4–5 [1]. During autumn 2022, all European Union/European Economic Area (EU/EEA) countries had vaccination campaigns in place to administer a booster dose, with several countries using the adapted bivalent vaccines [2]. The Omicron-descendent XBB lineage and XBB.1.5 sub-lineage became variants of interest in March 2023 [3]. We estimated the effectiveness of the COVID-19 bivalent vaccines against hospitalisation with PCR-confirmed SARS-CoV-2 infection among patients aged ≥ 60 years with severe acute respiratory infection (SARI) during the XBB lineage-predominant period.
    2024-01-18Journal article Open access Show more