ArticleJournal of medical virology2025
Virus Monitoring in Denmark: A Community-Based Self-Sampling System to Surveil Respiratory Viruses and Associated Symptoms.
Article in Journal of medical virology, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.
What it found
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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
4 citing papers in PubMed.
- The Pandemic Respiratory Virus Epidemiological Surveillance Trial - A Self-swab Surveillance System for Respiratory Viruses Nested Within FluTracking.The Journal of infectious diseases · 2026Article
- Respiratory viral infections in professional ice hockey teams-a one-season observational study.Frontiers in sports and active living · 2026Article
- COVIDmeter - a questionnaire-based symptom monitoring system for the surveillance of COVID-19 in Denmark, 2020-2023.Epidemiology and infection · 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
Corrections and comments
PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.
Authors and funding
21 authors.
Funding
No grant is acknowledged in the PubMed record.
Abstract
This study presents findings captured in the first 1.5 years of the Virus Monitoring in Denmark (VMD) surveillance system. It describes trends in respiratory viruses, related symptoms, and participant demographics and behaviors. VMD used self-swabbing and self-reported symptoms to monitor respiratory viruses in the general population. Participants were recruited via digital invitations to a representative sample of the population or through workplaces. Symptomatic participants could self-swab and register their samples and report their symptoms via a dedicated smartphone web app. With 30 627 participants and 12 642 samples analyzed, VMD had a broad demographic representation. SARS-CoV-2 was the most frequently detected virus, with positivity rates peaking at over 50% in late 2023. Participants commonly self-swabbed because of fever, cough, and rhinorrhea, with influenza A linked to the highest median number of symptoms. Participants only provided samples after reaching a specific symptom threshold, and participation affected the health-seeking behaviors and work attendance of a few individuals. VMD continuously provided real-time insights into respiratory virus trends and symptomatology in the general non-healthcare-seeking population. Its accessibility - available to anyone with a Danish identification number, a smartphone, and an invitation - highlights its potential as a pandemic preparedness tool.
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Registered trials
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