Publication Archive - Epiconcept

Protocol to measure COVID-19 vaccination impact among individuals aged 65 years and over

Alexandre Blake, James Humphreys, Esther Kissling, Yohann Mansiaux, Anthony Nardone, Baltazar Nunes (Epiconcept, France), Susana Monge Corella (Instituto de Salud Carlos III, Spain), Toon Braeye, Izaak Van Evercooren (Siensano, Belgium), Itziar Casado, Jesús Castilla, Aitziber Echeverría, Iván Martínez-Baz, Camino Trobajo-Sanmartín, (Instituto de Salud Pública de Navarra – IdiSNA – CIBERESP, Navarre, Spain), Christian Holm Hansen, Ida Rask Moustsen-Helms (Statens Serum Institut, Denmark), Massimo Fabiani, Alberto Mateo Urdiales, Chiara Sacco (Istituto Superiore di Sanità, Rome, Italy), Anja Bråthen Kristoffersen, Hinta Meijerink (Norwegian Institute of Public Health, Norway), Ausenda Machado, Patrícia Soares (Instituto Nacional de Saúde, Portugal), Rickard Ljung, Nicklas Pihlström, (Swedish Medicines Agency).

Stockholm: ECDC; 2026.

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COVID-19 Vaccine Effectiveness Among Older Adults

Laniece Delaunay C, Mateo-Urdiales A, Pérez-Gimeno G, et al.

JAMA Netw Open. 2026;9(6):e2619040. doi:10.1001/jamanetworkopen.2026.19040

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First steps in establishing surveillance of bloodstream infections from electronic health record derived data, EU/EEA countries, March 2023 to March 2025

Sentís Alexis, Dalby Tine, Κärki Tommi, Orchard Francisco, D’Ambrosio Angelo, Van den Nest Miriam, Benka Bernhard, Shodu Nathalie, Mertens Karl, Brađašević Emanuel, Jezidžić Antea, Marcou Markella, Hadjihannas Linos, Kubele Jan, Gubbels Sophie, Stougaard Louise, Dotsenko Liidia, Mitt Piret, Wieters Imke, Hoffmann Alexandra, Maragkos Antonis, D’Ancona Fortunato, Comelli Agnese, Salnaite Auguste, Brincat Andre, Borg Michael A, Brekelmans Manon, van Rooden Stephanie, Skyrud Danielsen Anders, Alberg Torunn, Klavs Irena, Kavka Daša, García-San Miguel Lucía, Gallego-Berciano Pilar, Billström Hanna, Aspevall Olov, Plachouras Diamantis, Emborg Hanne-Dorthe, Carvalho Carlos, Nardone Anthony, on behalf of the EHR-BSI working group

Euro Surveill. 2026;31(25):pii=2500618.

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Influenza Vaccine Effectiveness in European Primary Care Pediatric Practices: 2022–2024

Héloïse Lucaccioni, PhD; Marine Maurel, MsC; Gloria Pérez-Gimeno, PhD; Silke Buda, DVM; Noémie Sève, MSc; Lisa Domegan, PhD; Marit de Lange, PhD; Ana Paula Rodrigues, MD; Iván Martínez-Baz, PhD; Tove Samuelsson Hagey, MsC; Ivan Mlinarić, MD; Gergő Túri, MSc; Mihaela Lazar, PhD; Marta García Becerril, BPharm; Ralf Dürrwald, DVM; Vincent Enouf, PhD; Maureen O’Leary, PhD; Adam Meijer, PhD; Raquel Guiomar, PhD; Camino Trobajo-Sanmartín, PhD; Neus Latorre-Margalef, PhD; Maja Ilić, MD; Isabel M. Vázquez Rincón, PhD; Annika Erdwiens, MSc; Alessandra Falchi, PhD; Adele McKenna, PhD; Mariette Hooiveld, PhD; Verónica Gómez, MSc; Jesús Castilla, MD, PhD; Vesna Višekruna Vučina, MD; Francisco Pozo, PhD; Sabrina Bacci, MD, MSc, DPH; Marlena Kaczmarek, MPH, PhD; Esther Kissling, MSc

April 2026

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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.

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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

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