{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T11:03:19Z","timestamp":1785409399408,"version":"3.56.0"},"reference-count":27,"publisher":"Wiley","issue":"4","license":[{"start":{"date-parts":[[2025,3,25]],"date-time":"2025-03-25T00:00:00Z","timestamp":1742860800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/creativecommons.org\/licenses\/by-nc-nd\/4.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Medical Virology"],"published-print":{"date-parts":[[2025,4]]},"abstract":"<jats:title>ABSTRACT<\/jats:title>\n                  <jats:p>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\u2010swabbing and self\u2010reported 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\u2010swab and register their samples and report their symptoms via a dedicated smartphone web app. With 30\u2009627 participants and 12\u2009642 samples analyzed, VMD had a broad demographic representation. SARS\u2010CoV\u20102 was the most frequently detected virus, with positivity rates peaking at over 50% in late 2023. Participants commonly self\u2010swabbed 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\u2010seeking behaviors and work attendance of a few individuals. VMD continuously provided real\u2010time insights into respiratory virus trends and symptomatology in the general non\u2010healthcare\u2010seeking population. Its accessibility \u2013 available to anyone with a Danish identification number, a smartphone, and an invitation \u2013 highlights its potential as a pandemic preparedness tool.<\/jats:p>","DOI":"10.1002\/jmv.70293","type":"journal-article","created":{"date-parts":[[2025,3,27]],"date-time":"2025-03-27T07:57:17Z","timestamp":1743062237000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Virus Monitoring in Denmark: A Community\u2010Based Self\u2010Sampling System to Surveil Respiratory Viruses and Associated Symptoms"],"prefix":"10.1002","volume":"97","author":[{"given":"Tine Graakj\u00e6r","family":"Larsen","sequence":"first","affiliation":[{"name":"Department of Infectious Disease Epidemiology and Prevention Statens Serum Institut Copenhagen Denmark"},{"name":"ECDC Fellowship Programme, Public Health Microbiology path (EUPHEM) European Centre for Disease Prevention and Control (ECDC) Stockholm Sweden"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jonathan R.","family":"Ginty","sequence":"additional","affiliation":[{"name":"Department of Infectious Disease Epidemiology and Prevention Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Randi","family":"Jessen","sequence":"additional","affiliation":[{"name":"Department of High\u2010Capacity Diagnostics Statens Serum Institut Copenhagen Denmark"},{"name":"Department of Virology and Microbiological Preparedness Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ruben Bjerregaard","family":"Nielsen","sequence":"additional","affiliation":[{"name":"Department of High\u2010Capacity Diagnostics Statens Serum Institut Copenhagen Denmark"},{"name":"Biobank, Congenital Disorders &amp; Vaccine Preparedness, Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anders","family":"Jensen","sequence":"additional","affiliation":[{"name":"Department for Digital Infrastructure Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Amanda Bolt","family":"Botnen","sequence":"additional","affiliation":[{"name":"Department of Virus and Microbiological Special Diagnostics Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bartlomiej","family":"Wilkowski","sequence":"additional","affiliation":[{"name":"Department for Digital Infrastructure Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Camilla","family":"Rasmussen","sequence":"additional","affiliation":[{"name":"Department of Data Integration and Analysis Infectious Disease Preparedness, Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dalila Lepirica","family":"Br\u00f8db\u00e6k","sequence":"additional","affiliation":[{"name":"Department for Digital Infrastructure Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniel Steven","family":"Shaw","sequence":"additional","affiliation":[{"name":"Department of High\u2010Capacity Diagnostics Statens Serum Institut Copenhagen Denmark"},{"name":"Department of Virology and Microbiological Preparedness Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Elias","family":"Benameur","sequence":"additional","affiliation":[{"name":"Department of Data Integration and Analysis Infectious Disease Preparedness, Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Morten","family":"Rasmussen","sequence":"additional","affiliation":[{"name":"Department of Virus and Microbiological Special Diagnostics Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ramona","family":"Trebbien","sequence":"additional","affiliation":[{"name":"Department of Virus and Microbiological Special Diagnostics Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shila","family":"Mortensen","sequence":"additional","affiliation":[{"name":"Department of Virus and Microbiological Special Diagnostics Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Stefan S.","family":"Olsen","sequence":"additional","affiliation":[{"name":"Department of Data Integration and Analysis Infectious Disease Preparedness, Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Steven","family":"Chong","sequence":"additional","affiliation":[{"name":"Department for Digital Infrastructure Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Tyra Grove","family":"Krause","sequence":"additional","affiliation":[{"name":"Epidemiological Infectious Disease Preparedness, Statens Serum Institut Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Uffe Vest","family":"Schneider","sequence":"additional","affiliation":[{"name":"Department of Virology and Microbiological Preparedness Statens Serum Institut Copenhagen Denmark"},{"name":"Department of Virus and Microbiological Special Diagnostics Statens Serum Institut Copenhagen Denmark"},{"name":"CO\u2010HEP, Department of Immunology and Microbiology, Faculty of Health and Medical Sciences University of Copenhagen Copenhagen Denmark"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Anne\u2010Marie","family":"Vangsted","sequence":"additional","affiliation":[{"name":"Department of High\u2010Capacity Diagnostics Statens 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