2026-05-21T23:03:12Zhttps://repisalud.isciii.es/rest/oai/requestoai:repisalud.isciii.es:20.500.12105/113942025-04-23T10:39:40Zcom_20.500.12105_2052com_20.500.12105_2051col_20.500.12105_19608
Repisalud
author
Korczyńska, Monika Roberta
author
Dalsgaard Bjerre, K
author
Dam Rasmussen, L
author
Tvenstrup Jensen, E
author
Fischer, T K
author
Barrasa, Alicia
author
Ethelberg, S
2020-11-23T10:44:56Z
2020-11-23T10:44:56Z
2020
Epidemiol Infect. 2020 Feb 17;148:e52.
10.1017/S0950268820000461
1469-4409
Epidemiology and infection
32063241
http://hdl.handle.net/20.500.12105/11394
Norovirus (NoV) infections occur very frequently yet are rarely diagnosed. In Denmark, NoV infections are not under surveillance. We aimed to collect and describe existing laboratory-based NoV data. National NoV laboratory data were collected for 2011-2018, including information on patient identification number, age and sex, requesting physician, analysis date and result. We defined positive patient-episodes by using a 30-day time window and performed descriptive and time series analysis. Diagnostic methods used were assessed through a survey. We identified 15 809 patient-episodes (11%) out of 142 648 tested patients with an increasing trend, 9366 in 2011 vs. 32 260 in 2018. This corresponded with a gradual introduction of polymerase chain reaction analysis in laboratories. The highest positivity rate was in patients aged <5 years (15%) or >85 years (17%). There was a large difference in test performance over five Danish geographical regions and a marked seasonal variation with peaks from December to February. This is the first analysis of national NoV laboratory data in Denmark. A future laboratory-based surveillance system may benefit public health measures by describing trend, burden and severity of seasons and possibly pinpoint hospital outbreaks.
eng
Epidemiology
Norwalk agent and related viruses
Hospital-acquired (nosocomial) infections
Norovirus
Surveillance
Detection of norovirus infections in Denmark, 2011-2018.
research article
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URL
https://repisalud.isciii.es/bitstreams/6f623c91-4070-4420-ba9e-e16c23cc0dab/download
File
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application/pdf
DetectionOfNorovirusInfections_2020.pdf
URL
https://repisalud.isciii.es/bitstreams/83676095-0f26-4583-bcc1-629e5ee95fec/download
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text/plain
DetectionOfNorovirusInfections_2020.pdf.txt