Publication

Vaccine effectiveness against medically attended, laboratory-confirmed influenza in the I-MOVE primary care network in Europe, VEBIS project, 2024/25

Lucaccioni H, Pozo F, Pérez-Gimeno G, Dürrwald R, Uras M, Domegan L, Oroszi B, Meijer A, Trobajo-Sanmartín C, Ujvari D, Rodrigues AP, Mlinarić I, Lazar M, Rivas Wagner E, Erdwiens A, Enouf V, McKenna A, Túri G, de Lange M, Martínez-Baz I, Latorre-Margalef N, Guiomar R, Kurečić Filipovic S, Dinu S, Mokoroa O, Tolksdorf K, Masse S, Bennett C, Kristóf K, Hooiveld M, Castilla J, Santos J, Višekruna Vučina V, Popescu R, Bacci S, Kaczmarek M, Kissling E.

Expert Rev Vaccines. 2026 Mar 12:2645378. doi: 10.1080/14760584.2026.2645378. Epub ahead of print. PMID: 41816931.

Available here

Modelling approaches for estimating vaccine effectiveness of consecutive SARS-CoV-2 variant sublineages in the absence of study-specific genetic sequencing data, VEBIS hospital network, Europe, 2023/24

Liliana Antunes, Baltazar Nunes, Olivier Núñez, Iván Martínez-Baz, Yinthe Dockx, Maria-Louise Borg, Beatrix Oroszi, Róisín Duffy, Ralf Dürwald, Monika Kuliešė, Ausenda Machado, Goranka Petrović, Mihaela Lazăr, Raquel Guiomar, Virginia Álvarez Río, Jesús Castilla,Koen Magerman, Aušra Džiugytė, Gergö Túri, Margaret Fitzgerald, Carolin Hackmann, Ligita Jančorienė, Verónica Gomez, Zvjezdana Lovrić Makarić, Odette Popovici, Madelyn Rojas-Castro, Angela M. C. Rose, and the European Hospital Vaccine Effectiveness Group

Published: March 9, 2026

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Influenza vaccine effectiveness from nine studies during drifted A(H3N2) subclade K predominance, Europe, September 2025 to January 2026

Lucaccioni Heloise, Marques Diogo FP, Kirsebom Freja, Emborg Hanne-Dorthe, Hamilton Mark, Whitaker Heather, Bolt Botnen Amanda, Bucholc Magda, Pozo Francisco, Andrews Nick, Trebbien Ramona, Hameed Safraj Shahul, Lauenborg Møller Karina, O’Doherty Mark G, Lopez-Bernal Jamie, Morrison Kirsty, Cottrell Simon, Wilton Suzanne, Rose Angela MC, Kissling Esther, the European IVE group.

Euro Surveill. 2026;31(7):pii=2600109.

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Unmeasured confounding and misclassification in studies estimating vaccine effectiveness against hospitalisation and death using electronic health records (EHRs): an evaluation of a multi-country European retrospective cohort study

Humphreys, James., Nicolay, Nathalie., Braeye, Toon., Van Evercooren, Izaak., Hansen, Christian Holm., Moustsen-Helms, Ida Rask., Sacco, Chiara., Mateo-Urdiales, Alberto., Castilla, Jesús., Martínez-Baz, Iván., Machado, Ausenda., Soares, Patricia., de Gier, Brechje., Meijerink, Hinta., Monge, Susana., Bacci, Sabrina., Nunes, Baltazar

VEBIS-EHR working group, 2025/12/17 - BMC Medical Research Methodology, 1471-2288 - DOI: 10.1186/s12874-025-02742-8

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Protocol to measure COVID-19 XBB.1.5 vaccine effectiveness in the immunocompromised population during the 2023 autumn vaccination campaign

Baltazar Nunes, James Humphreys, Alexandre Blake, Camelia Savulescu, Esther Kissling, Anthony Nardone, Susana Monge Corella, Iván Martínez-Baz, Itziar Casado, Aitziber Echeverría, Camino Trobajo-Sanmartín, Jesús Castilla , Christian Holm Hansen, Ida Rask Moustsen-Helms, Massimo Fabiani, Alberto Mateo Urdiales, Chiara Sacco. Hinta Meijerink, Anja Bråthen Kristoffersen, Patrícia Soares, Ausenda Machado, Rickard Ljung, Nicklas Pihlström

Stockholm, December 2025

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Early estimates of seasonal influenza vaccine effectiveness against influenza requiring medical attention at primary care level in Europe, week 41 – 49, 2025

Kissling E, Lucaccioni H

19 December 2025

Available here

Effectiveness of the 2023 Autumn XBB.1.5 COVID-19 Booster During Summer 2024 in the EU/EEA: A VEBIS Electronic Health Record Network Study

Humphreys J, Nicolay N, Braeye T, Van Evercooren I, Hansen CH, Moustsen-Helms IR, Sacco C, Fabiani M, Castilla J, Martínez-Baz I, Machado A, Soares P, Ljung R, Pihlström N, Kissling E, Nardone A, Monge S, Bacci S, Nunes B; VEBIS‐EHR working group.

2025 Dec;19(12):e70198. doi: 10.1111/irv.70198. PMID: 41312816.

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Recommendations for estimating and reporting vaccine effectiveness by time since vaccination: a COVID-19 case study

Esther Kissling, Baltazar Nunes, Mariëtte Hooiveld, Iván Martínez-Baz, Susana Monge, Chris Robertson, Mirjam Knol, Noémie Sève, Ivan Mlinarić, Lisa Domegan, Ausenda Machado, Heather Whitaker, Mihaela Lazar, Adam Meijer, Theresa Enkirch, Itziar Casado, Gloria Pérez-Gimeno, Naoma William, Vincent Enouf, Sanja Kurečić Filipović, Adele McKenna, Ana Paula Rodrigues, Simon de Lusignan, Olivia-Carmen Timnea, Neus Latorre-Margalef, Jesús Castilla, Francisco Pozo, Mark Hamilton, Shirley Masse, Maja Ilić, Luca Basile, Joan O’Donnell, Raquel Guiomar, Maximilian Riess, Rodica-Manuela Popescu, Angela M C Rose, Nick Andrews, Sabrina Bacci, Lucia Pastore Celentano, Marta Valenciano, Alain Moren, Philippe Beutels, Niel Hens, on behalf of I-MOVE-COVID-19 and ECDC primary care study teams

2025, kwaf254

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Hybrid, infection‑ and vaccination‑induced protection against laboratory‑ confirmedSARS‑CoV‑2 infection in a European multi‑centre prospective cohort of healthcare workers, 2021–2024

Madelyn Rojas-Castro, Ranya Mulchandani, Kim Brolin, Zvjezdana Lovrić Makarić, Anneli Uusküla, Colm Bergin, Catherine Fleming, Paolo Bonfanti, Rita Murri, Viesturs Zvirbulis, Dace Zavadska, Konstanty Szuldrzynski, Vânia Gaio, Corneliu Petru Popescu, Mihai Craiu, Raluca-Maria Hrișcă, Maria Cisneros, Miriam Latorre-Millán, Goranka Petrović, Liss Lohur, Jonathan McGrath, Lauren Ferguson, Anna Spolti, Katleen De Gaetano Donati, Ilze Abolina, Dagne Gravele, Ausenda Machado, Simin Aysel Florescu, Mihaela Lazar, Pilar Subirats, Laura Clusa, Gordan Sarajlić, Jacklyn Sui, Claire Kenny, Rosaria Santangelo, Dainis Krievins, Elza Anna Barzdina, Camila Valadas Henriques, Alma Gabriela Kosa, Săftica-Mariana Pohrib, Victor Daniel Miron, Carmen Muñoz-Almagro, Ana Maria Milagro, Sabrina Bacci, Camelia Savulescu and VEBIS HCW VE study group

DOI: 10.1186/s12916-025-04503-2

Available here

COVID-19 vaccine effectiveness against hospitalisation in older adults, VEBIS hospital network, Europe, September 2024–May 2025

Madelyn Rojas-Castro, Nuno Verdasca, Susana Monge, Laurane De Mot, Camino Trobajo-Sanmartín, Róisín Duffy, Gergő Túri, Monika Kuliese, Ralf Duerrwald, Maria-Louise Borg, Odette Popovici, Verónica Gomez, Zvjezdana Lovrić Makarić, Odile Launay, Diogo F. P. Marques, Francisco Pozo, Arne Witdouck, Iván Martínez-Baz, Margaret Fitzgerald, Beatrix Oroszi, Ligita Jančorienė, Silke Buda, Ausra Dziugyte, Mihaela Lazăr, Ausenda Machado, Irena Tabain, Liem Binh Luong Nguyen, Eva Rivas Wagner, François Dufrasne, Jesús Castilla, Lisa Domegan, Viktória Velkey, Fausta Majauskaite, Carolin Hackmann, Nathalie Nicolay, Sabrina Bacci, Angela M. C. Rose

5 November 2025.

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