Percorrer por autor "Emborg, Hanne-Dorthe"
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- Comparison of two methods for the estimation of COVID-19 vaccine effectiveness of the autumnal booster within the VEBIS-EHR network in 2022/23Publication . Monge, Susana; Humphreys, James; Nicolay, Nathalie; Braeye, Toon; Van Evercooren, Izaak; Hansen, Christian Holm; Emborg, Hanne-Dorthe; Fabiani, Massimo; Sacco, Chiara; Castilla, Jesús; Martínez-Baz, Iván; de Gier, Brechje; Hahné, Susan; Hinta Meijerink; Kristoffersen, Anja Bråthen; Machado, Ausenda; Soares, Patricia; Fontán-Vela, Mario; Nardone, Anthony; Kissling, Esther; Nunes, Baltazar; VEBIS-Lot 4 working groupWithin an infrastructure to monitor vaccine effectiveness (VE) against hospitalization due to COVID-19 and COVID-19 related deaths from November 2022 to July 2023 in seven countries in real-world conditions (VEBIS network), we compared two approaches: (a) estimating VE of the first, second or third COVID-19 booster doses administered during the autumn of 2022, and (b) estimating VE of the autumn vaccination dose regardless of the number of prior doses (autumnal booster approach). Retrospective cohorts were constructed using Electronic Health Records at each participating site. Cox regressions with time-changing vaccination status were fit and site-specific estimates were combined using random-effects meta-analysis. VE estimates with both approaches were mostly similar, particularly shortly after the start of the vaccination campaign, and showed a similar timing of VE waning. However, autumnal booster estimates were more precise and showed a clearer trend, particularly compared to third booster estimates, as calendar time increased after the vaccination campaign and during periods of lower SARS-CoV-2 activity. Moreover, the decrease in protection by increasing calendar time was more clear and precise than when comparing protection by number of doses. Therefore, estimating VE under an autumnal booster framework emerges as a preferred method for future monitoring of COVID-19 vaccination campaigns.
- Evaluation of European severe acute respiratory infection (SARI) surveillance, 27 European countries, 2022/23Publication . Marques, Diogo Fp; Kovacs, Dory; Sanchez-Ruiz, Miguel-Angel; Rodrigues, Ana Paula; Machado, Ausenda; Mazagatos, Clara; Monge, Susana; Domegan, Lisa; O'Donnell, Joan; Hooiveld, Mariette; Emborg, Hanne-Dorthe; Nunes, Baltazar; Carvalho, Carlos; Rose, Angela McBackground: Between 2020 and 2023, ECDC has supported 21 of 30 EU/EEA and six Western Balkan countries by enhancing severe acute respiratory infection (SARI) surveillance to monitor trends, detect unexpected events, evaluate public health interventions, identify risk factors and support vaccine effectiveness studies. Using diverse strategies, countries have implemented SARI surveillance and reported data at national/European levels.AimWe evaluated European-level SARI surveillance and provided recommendations to achieve objectives and improve key attribute performance.MethodsWe analysed 2022/23 surveillance data for completeness. We administered a questionnaire, targeting country-level representatives, to evaluate surveillance attributes (meeting objectives, usefulness, acceptability, timeliness, representativeness) and identify strengths, weaknesses, opportunities and threats.ResultsThirteen countries (13/27) reported data at European level. Data showed good overall completeness but varied across countries and some variables need improvement (vaccination, sequencing). The questionnaire was completed by all 27 countries. Most countries (23/27) reported that the system effectively monitored trends and considered it useful and acceptable (25/27), but only 16 found it timely and 14 representative. Challenges included insufficient case-based data, data linkage issues and insufficient data completeness. Slow/inefficient manual data extraction affected timeliness, while insufficient geographical coverage affected representativeness. Multi-pathogen surveillance was identified as the main strength, heterogeneity of systems the main weakness, improvements of hospital information systems the main opportunity, and lack of sustainable funding the main threat.ConclusionsSARI surveillance was perceived as effective in monitoring trends, useful and acceptable. To achieve additional objectives and enhance timeliness and representativeness, we recommend improving data completeness, digitalisation/automation and geographical coverage.
- Interim 2017/18 influenza seasonal vaccine effectiveness: combined results from five European studiesPublication . Rondy, Marc; Kissling, Esther; Emborg, Hanne-Dorthe; Gherasim, Alin; Pebody, Richard; Trebbien, Ramona; Pozo, Francisco; Larrauri, Amparo; McMenamin, Jim; Valenciano, Marta; I-Move/I-Move GroupBetween September 2017 and February 2018, influenza A(H1N1)pdm09, A(H3N2) and B viruses (mainly B/Yamagata, not included in 2017/18 trivalent vaccines) co-circulated in Europe. Interim results from five European studies indicate that, in all age groups, 2017/18 influenza vaccine effectiveness was 25 to 52% against any influenza, 55 to 68% against influenza A(H1N1)pdm09, -42 to 7% against influenza A(H3N2) and 36 to 54% against influenza B. 2017/18 influenza vaccine should be promoted where influenza still circulates.
- Interim 2018/19 influenza vaccine effectiveness: six European studies, October 2018 to January 2019Publication . Kissling, Esther; Rose, Angela; Emborg, Hanne-Dorthe; Gherasim, Alin; Pebody, Richard; Pozo, Francisco; Trebbien, Ramona; Mazagatos, Clara; Whitaker, Heather; Valenciano, Marta; European IVE groupSeasonal influenza vaccine is recommended in all European Union (EU) countries for older people and others at increased risk of severe influenza and its complications, including those with chronic diseases. In the United Kingdom (UK), incremental introduction of a universal childhood influenza vaccination programme began in 2013/14. The World Health Organization (WHO) recommendations for trivalent influenza vaccine strains for the 2018/19 northern hemisphere influenza season included an A/Michigan/45/2015 (H1N1)pdm09-like virus, an A/Singapore/INFIMH-16–0019/2016 (H3N2)-like virus and a B/Colorado/06/2017-like virus from the B/Victoria lineage. The early 2018/19 influenza season in Europe was characterised by both influenza A virus subtypes circulating widely. There was co-circulation in some countries, with others reporting dominance of either A(H1N1)pdm09 or A(H3N2) viruses. The season started late in most countries compared with previous seasons, with few influenza B viruses detected in the WHO European Region. Since the 2008/09 season, the UK, Denmark, Spain, and several other EU countries conducting multicentre studies, have participated in I-MOVE (Influenza – Monitoring Vaccine Effectiveness in Europe), a network measuring influenza vaccine effectiveness each season. Interim results from six established influenza VE studies across Europe for the 2018/19 season indicate that VE against laboratory-confirmed influenza A ranged between 32% and 43% among all ages in primary care and hospital settings and was 59% in the target groups for vaccination.
- Interim 2019/20 influenza vaccine effectiveness: six European studies, September 2019 to January 2020Publication . Rose, Angela; Kissling, Esther; Emborg, Hanne-Dorthe; Larrauri, Amparo; McMenamin, Jim; Pozo, Francisco; Trebbien, Ramona; Mazagatos, Clara; Whitaker, Heather; Machado, Ausenda; Gómez, Verónica; Nunes, Baltazar; Kislaya, Irina; Pechirra, Pedro; Conde, Patrícia; Rodrigues, Ana Paula; Cristóvão, Paula; Costa, Inês; Guiomar, Raquel; European IVE GroupBackground: Influenza A(H1N1)pdm09, A(H3N2) and B viruses were co-circulating in Europe between September 2019 and January 2020. Aim: To provide interim 2019/20 influenza vaccine effectiveness (VE) estimates from six European studies, covering 10 countries and both primary care and hospital settings. Methods: All studies used the test-negative design, although there were some differences in other study characteristics, e.g. patient selection, data sources, case definitions and included age groups. Overall and influenza (sub)type-specific VE was estimated for each study using logistic regression adjusted for potential confounders. Results: There were 31,537 patients recruited across the six studies, of which 5,300 (17%) were cases with 5,310 infections. Most of these (4,466; 84%) were influenza A. The VE point estimates for all ages were 29% to 61% against any influenza in the primary care setting and 35% to 60% in hospitalised older adults (aged 65 years and over). The VE point estimates against A(H1N1)pdm09 (all ages, both settings) was 48% to 75%, and against A(H3N2) ranged from −58% to 57% (primary care) and −16% to 60% (hospital). Against influenza B, VE for all ages was 62% to 83% (primary care only). Conclusions: Influenza vaccination is of continued benefit during the ongoing 2019/20 influenza season. Robust end-of-season VE estimates and genetic virus characterisation results may help understand the variability in influenza (sub) type-specific results across studies.
- Interim 2024/25 influenza vaccine effectiveness: eight European studies, September 2024 to January 2025Publication . Rose, Angela; Lucaccioni, Héloïse; Marsh, Kimberly; Kirsebom, Freja; Whitaker, Heather; Emborg, Hanne-Dorthe; Botnen, Amanda Bolt; O’Doherty, Mark G.; Pozo, Francisco; Shahul Hameed, Safraj; Andrews, Nick; Hamilton, Mark; Lauenborg Møller, Karina; Trebbien, Ramona; Marques, Diogo F.P.; European IVE groupThe 2024/25 influenza season in Europe is currently characterised by the co-circulation of influenza A(H1N1)pdm09, A(H3N2) and B/Victoria viruses, with influenza A(H1N1)pdm09 predominating. Interim vaccine effectiveness estimates from eight European studies conducted in 17 countries indicate an overall influenza A vaccine effectiveness of 32–53% in primary care settings and 33–56% in hospital settings, with some indications of lower effectiveness by subtype and higher effectiveness against influenza B (≥58% across settings). Where feasible, influenza vaccination should be encouraged and other preventive measures strengthened.
- New perspectives on respiratory syncytial virus surveillance at the national level: lessons from the COVID-19 pandemicPublication . Teirlinck, Anne C.; Johannesen, Caroline K.; Broberg, Eeva K.; Penttinen, Pasi; Campbell, Harry; Nair, Harish; Reeves, Rachel M.; Bøås, Håkon; Brytting, Mia; Cai, Wei; Carnahan, AnnaSara; Casalegno, Jean-Sebastien; Danis, Kostas; De Gascun, Cillian; Ellis, Joanna; Emborg, Hanne-Dorthe; Gijon, Manuel; Guiomar, Raquel; Hirve, Siddhivinayak S.; Jiřincová, Helena; Nohynek, Hanna; Oliva, Jesus Angel; Osei-Yeboah, Richard; Paget, John; Pakarna, Gatis; Pebody, Richard; Presser, Lance; Rapp, Marie; Reiche, Janine; Rodrigues, Ana Paula; Seppälä, Elina; Socan, Maja; Szymanski, Karol; Trebbien, Ramona; Večeřová, Jaromíra; van der Werf, Sylvie; Zambon, Maria; Meijer, Adam; Fischer, Thea K.Learning from the COVID-19 pandemic and considering the effects of this pandemic, we provide recommendations that can guide towards sustainable RSV surveillance with the potential to be integrated into the broader perspective of respiratory surveillance.
- Relative vaccine effectiveness against COVID-19 hospitalisation in persons aged ≥ 65 years: results from a VEBIS network, Europe, October 2021 to July 2023Publication . Fontán-Vela, Mario; Kissling, Esther; Nicolay, Nathalie; Braeye, Toon; Van Evercooren, Izaak; Holm Hansen, Christian; Emborg, Hanne-Dorthe; Fabiani, Massimo; Mateo-Urdiales, Alberto; AlKerwi, Ala'a; Schmitz, Susanne; Castilla, Jesús; Martínez-Baz, Iván; de Gier, Brechje; Hahné, Susan; Meijerink, Hinta; Starrfelt, Jostein; Nunes, Baltazar; Caetano, Constantino; Derrough, Tarik; Nardone, Anthony; Monge, Susana; VEBIS-Lot 4 working groupSince 2021, the Vaccine Effectiveness, Burden and Impact Studies of coronavirus disease 2019 (COVID-19) and influenza (VEBIS) project monitors vaccine effectiveness (VE) in real-world conditions to inform vaccination programmes in the European Union/European Economic Area (EU/EEA) countries [1]. One project aims to monitor real-time COVID-19 VE using electronic health registries (EHR) in multiple countries, with initial findings previously published [2-4]. We report pooled VE results against hospitalisation due to COVID-19 by number of doses received and time since vaccination in a community-dwelling resident population aged ≥ 65 years between October 2021 and July 2023.