ArticleEuro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin2021
Spotlight influenza: The 2019/20 influenza season and the impact of COVID-19 on influenza surveillance in the WHO European Region.
Article in Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. An erratum has been issued. Cited by 28 papers, 1 of them a synthesis that pooled it.
What it found
Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.
The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.
The trial behind it
Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.
Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.
Who cites it
28 citing papers in PubMed, 1 synthesis or guideline pooled it, 36 citations in OpenAlex.
- Impact of Non-Pharmaceutical Interventions Targeted at COVID-19 Pandemic on Influenza Burden-A Systematic Review and Meta-Analysis.Influenza and other respiratory viruses · 2026Pooled it
- Genetic Variability and Evolutionary Dynamics of A(H1N1)pdm09 in Italy Before, During, and After the COVID-19 Pandemic.Pathogens (Basel, Switzerland) · 2026Article
- Update on the Efficacy of Vaccination on Host Immunity to Influenza Virus Infection.International archives of allergy and immunology · 2026Review
- How to ensure effective and sustainable ILI surveillance in Belgian general practices? : protocol.Archives of public health = Archives belges de sante publique · 2026Article
- Excess mortality in Europe estimated by EuroMOMO during the COVID-19 pandemic and previous influenza seasons.Nature communications · 2026Article
- Changes in the incidence of notifiable infectious diseases before, during, and after the COVID-19 pandemic in Mainland China.BMC infectious diseases · 2025Article
- Primary care sentinel surveillance of influenza-like illness and laboratory detections of respiratory viral infections in Denmark, week 40 2021 to week 39 2023.Euro surveillance : bulletin Europeen sur les maladies transmissibles = European communicable disease bulletin · 2025Article
- Phytochemical-based nanosystems: recent advances and emerging application in antiviral photodynamic therapy.Nanomedicine (London, England) · 2025Review
- Assessment of the impacts of public health and social measures on influenza activity during the COVID-19 pandemic from 2020 to 2022 in Beijing, China: a modelling study.BMC infectious diseases · 2025Article
- Review
- Influenza in Adults Seeking Care at Seven European Emergency Departments: A Prospective Active Surveillance During the 2019-2020 Influenza Season.Influenza and other respiratory viruses · 2024Article
- Changes in the Epidemiological Features of Influenza After the COVID-19 Pandemic in China, the United States, and Australia: Updated Surveillance Data for Influenza Activity.Interactive journal of medical research · 2024Article
- Predicting influenza-like illness trends based on sentinel surveillance data in China from 2011 to 2019: A modelling and comparative studyInfectious Disease Modelling · 2024Article
- The Detection of Influenza Virus Before and During the COVID-19 Pandemic in Cameroon.Influenza and other respiratory viruses · 2024Article
- Viral co-detection of influenza virus and other respiratory viruses in hospitalized Brazilian patients during the first three years of the coronavirus disease (COVID)-19 pandemic: an epidemiological profile.Frontiers in microbiology · 2024Article
- The effect of nonpharmaceutical interventions on influenza virus transmission.Frontiers in public health · 2024Observational
- Impact of Influenza Vaccination on the Burden of Severe Influenza in the Elderly: Spain, 2017-2020.Vaccines · 2023Article
- The impact of the SARS-CoV-2 pandemic on global influenza surveillance: Insights from 18 National Influenza Centers based on a survey conducted between November 2021 and March 2022.Influenza and other respiratory viruses · 2023Article
- The Impact of the COVID-19 Pandemic on Influenza Transmission in Poland.Microorganisms · 2023Article
- Integrated surveillance of human respiratory viruses in addition to SARS-CoV-2 in a public testing facility in the Netherlands.Journal of clinical virology : the official publication of the Pan American Society for Clinical Virology · 2023Article
Corrections and comments
- Erratum issued
Authors and funding
12 authors at 3 institutions in 3 countries.
Funding
Abstract
BackgroundAnnual seasonal influenza activity in the northern hemisphere causes a high burden of disease during the winter months, peaking in the first weeks of the year.AimWe describe the 2019/20 influenza season and the impact of the COVID-19 pandemic on sentinel surveillance in the World Health Organization (WHO) European Region.MethodsWe analysed weekly epidemiological and virological influenza data from sentinel primary care and hospital sources reported by countries, territories and areas (hereafter countries) in the European Region.ResultsWe observed co-circulation of influenza B/Victoria-lineage, A(H1)pdm09 and A(H3) viruses during the 2019/20 season, with different dominance patterns observed across the Region. A higher proportion of patients with influenza A virus infection than type B were observed. The influenza activity started in week 47/2019, and influenza positivity rate was ≥ 50% for 2 weeks (05-06/2020) rather than 5-8 weeks in the previous five seasons. In many countries a rapid reduction in sentinel reports and the highest influenza activity was observed in weeks 09-13/2020. Reporting was reduced from week 14/2020 across the Region coincident with the onset of widespread circulation of SARS-CoV-2.ConclusionsOverall, influenza type A viruses dominated; however, there were varying patterns across the Region, with dominance of B/Victoria-lineage viruses in a few countries. The COVID-19 pandemic contributed to an earlier end of the influenza season and reduced influenza virus circulation probably owing to restricted healthcare access and public health measures.
Indexed as
Identifiers
What OpenQuestion holds
Registered trials
Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.