Percorrer por autor "Fitzgerald, Margaret"
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- COVID-19 Vaccine Effectiveness Against Hospitalization in Older Adults, VEBIS Hospital Network, Europe, September 2024-May 2025Publication . Rojas-Castro, Madelyn; Verdasca, Nuno; Monge, Susana; De Mot, Laurane; Trobajo-Sanmartín, Camino; Duffy, Róisín; Túri, Gergő; Kuliese, Monika; Duerrwald, Ralf; Borg, Maria-Louise; Popovici, Odette; Gomez, Verónica; Makarić, Zvjezdana Lovrić; Launay, Odile; Marques, Diogo F.P.; Pozo, Francisco; Witdouck, Arne; Martínez-Baz, Iván; Fitzgerald, Margaret; Oroszi, Beatrix; Jančorienė, Ligita; Buda, Silke; Dziugyte, Ausra; Lazăr, Mihaela; Machado, Ausenda; Tabain, Irena; Nguyen, Liem Binh Luong; Wagner, Eva Rivas; Dufrasne, François; Castilla, Jesús; Domegan, Lisa; Velkey, Viktória; Majauskaite, Fausta; Hackmann, Carolin; Nicolay, Nathalie; Bacci, Sabrina; Rose, Angela M.C.; European Hospital Vaccine Effectiveness GroupWe estimated COVID-19 vaccine effectiveness (VE) against PCR-confirmed SARS-CoV-2 hospitalization in patients ≥ 60 years with severe acute respiratory infection, using a multicenter, test-negative, case-control study across seven sites in six European countries between September 2024 and May 2025. We included 352 cases (115 vaccinated; 33%) and 9980 controls (5024 vaccinated; 50%). VE was 42% (95% CI: 15; 61) 14-59 days post-vaccination, 32% (95% CI: -1; 54) at 60-119 days, and 36% (95% CI: 2; 60) at 120-179 days, and no effect thereafter. Among adults aged 60-79 and ≥ 80 years, we observed moderate VE against COVID-19 hospitalization for up to 2 and 4 months, respectively.
- Early COVID‐19 XBB.1.5 Vaccine Effectiveness Against Hospitalisation Among Adults Targeted for Vaccination, VEBIS Hospital Network, Europe, October 2023–January 2024Publication . Antunes, Liliana; Mazagatos, Clara; Martínez‐Baz, Iván; Naesens, Reinout; Borg, Maria‐Louise; Petrović, Goranka; Fatukasi, Terra; Jancoriene, Ligita; Machado, Ausenda; Oroszi, Beatrix; Husa, Petr; Lazar, Mihaela; Dürrwald, Ralf; Howard, Jennifer; Melo, Aryse; Pérez‐Gimeno, Gloria; Castilla, Jesús; Bernaert, Eva; Džiugytė, Aušra; Makarić, Zvjezdana Lovrić; Fitzgerald, Margaret; Mickienė, Auksė; Gómez, Verónica; Túri, Gergő; Součková, Lenka; Marin, Alexandru; Tolksdorf, Kristin; Nicolay, Nathalie; Rose, Angela M.C.; European Hospital Vaccine Effectiveness GroupWe conducted a multicentre test-negative case–control study covering the period from October 2023 to January 2024 among adult patients aged ≥18 years hospitalised with severe acute respiratory infection in Europe. We provide early estimates of the effectiveness of the newly adapted XBB.1.5 COVID-19 vaccines against PCR-confirmed SARS-CoV-2 hospitalisation. Vaccine effectiveness was 49% overall, ranging between 69% at 14–29days and 40% at 60–105days post vaccination. The adapted XBB.1.5 COVID-19 vaccines conferred protection against COVID-19 hospitalisation in the first 3.5months post vaccination, with VE>70% in older adults (≥65 years) up to 1month post vaccination.
- 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, 2023Publication . 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 GroupThe 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.
- Effectiveness of the XBB.1.5 COVID-19 Vaccines Against SARS-CoV-2 Hospitalisation Among Adults Aged ≥ 65 Years During the BA.2.86/JN.1 Predominant Period, VEBIS Hospital Study, Europe, November 2023 to May 2024Publication . Antunes, Liliana; Rojas-Castro, Madelyn; Lozano, Marcos; Martínez-Baz, Iván; Leroux-Roels, Isabel; Borg, Maria-Louise; Oroszi, Beatrix; Fitzgerald, Margaret; Dürrwald, Ralf; Jancoriene, Ligita; Machado, Ausenda; Petrović, Goranka; Lazar, Mihaela; Součková, Lenka; Bacci, Sabrina; Howard, Jennifer; Verdasca, Nuno; Basile, Luca; Castilla, Jesús; Ternest, Silke; Džiugytė, Aušra; Túri, Gergő; Duffy, Roisin; Hackmann, Carolin; Kuliese, Monika; Gomez, Verónica; Makarić, Zvjezdana Lovrić; Marin, Alexandru; Husa, Petr; Nicolay, Nathalie; Rose, Angela M.C.; VEBIS SARI VE network teamWe estimated the effectiveness of the adapted monovalent XBB.1.5 COVID-19 vaccines against PCR-confirmed SARS-CoV-2 hospitalisation during the BA.2.86/JN.1 lineage-predominant period using a multicentre test-negative case-control study in Europe. We included older adults (≥ 65 years) hospitalised with severe acute respiratory infection from November 2023 to May 2024. Vaccine effectiveness was 46% at 14-59 days and 34% at 60-119 days, with no effect thereafter. The XBB.1.5 COVID-19 vaccines conferred protection against BA.2.86 lineage hospitalisation in the first 4 months post-vaccination.
- Effectiveness of the XBB.1.5 COVID-19 Vaccines Against SARS-CoV-2 Hospitalisation Among Adults Aged ≥ 65 Years During the BA.2.86/JN.1 Predominant Period, VEBIS Hospital Study, Europe, November 2023 to May 2024Publication . Antunes, Liliana; Rojas-Castro, Madelyn; Lozano, Marcos; Martínez-Baz, Iván; Leroux-Roels, Isabel; Borg, Maria-Louise; Oroszi, Beatrix; Fitzgerald, Margaret; Dürrwald, Ralf; Jancoriene, Ligita; Machado, Ausenda; Petrović, Goranka; Lazar, Mihaela; Součková, Lenka; Bacci, Sabrina; Howard, Jennifer; Verdasca, Nuno; Basile, Luca; Castilla, Jesús; Ternest, Silke; Džiugytė, Aušra; Túri, Gergő; Duffy, Roisin; Hackmann, Carolin; Kuliese, Monika; Gomez, Verónica; Makarić, Zvjezdana Lovrić; Marin, Alexandru; Husa, Petr; Nicolay, Nathalie; Rose, Angela M. C.; VEBIS SARI VE network teamWe estimated the effectiveness of the adapted monovalent XBB.1.5 COVID-19 vaccines against PCR-confirmed SARS-CoV-2 hospitalisation during the BA.2.86/JN.1 lineage-predominant period using a multicentre test-negative case-control study in Europe. We included older adults (≥ 65 years) hospitalised with severe acute respiratory infection from November 2023 to May 2024. Vaccine effectiveness was 46% at 14-59 days and 34% at 60-119 days, with no effect thereafter. The XBB.1.5 COVID-19 vaccines conferred protection against BA.2.86 lineage hospitalisation in the first 4 months post-vaccination.