Dynamics of non-household contacts during the COVID-19 pandemic in 2020 and 2021 in the Netherlands

The COVID-19 pandemic was in 2020 and 2021 for a large part mitigated by reducing contacts in the general population. To monitor how these contacts changed over the course of the pandemic in the Netherlands, a longitudinal survey was conducted where participants reported on their at-risk contacts ev...

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Published inScientific reports Vol. 13; no. 1; p. 5166
Main Authors Backer, Jantien A., Bogaardt, Laurens, Beutels, Philippe, Coletti, Pietro, Edmunds, W. John, Gimma, Amy, van Hagen, Cheyenne C. E., Hens, Niel, Jarvis, Christopher I., Vos, Eric R. A., Wambua, James, Wong, Denise, van Zandvoort, Kevin, Wallinga, Jacco
Format Journal Article
LanguageEnglish
Published London Nature Publishing Group UK 30.03.2023
Nature Publishing Group
Nature Portfolio
Subjects
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692/700/478
692/700/478/174
Age groups
Coronaviruses
COVID-19
COVID-19 - epidemiology
COVID-19 - prevention & control
COVID-19 vaccines
Disease transmission
Households
Humanities and Social Sciences
Humans
Immunization
Influenza
multidisciplinary
Netherlands - epidemiology
Pandemics
Pandemics - prevention & control
Questionnaires
SARS-CoV-2
Schools
Science
Science (multidisciplinary)
Severe acute respiratory syndrome coronavirus 2
Surveys
Vaccination
Netherlands
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Summary:The COVID-19 pandemic was in 2020 and 2021 for a large part mitigated by reducing contacts in the general population. To monitor how these contacts changed over the course of the pandemic in the Netherlands, a longitudinal survey was conducted where participants reported on their at-risk contacts every two weeks, as part of the European CoMix survey. The survey included 1659 participants from April to August 2020 and 2514 participants from December 2020 to September 2021. We categorized the number of unique contacted persons excluding household members, reported per participant per day into six activity levels, defined as 0, 1, 2, 3–4, 5–9 and 10 or more reported contacts. After correcting for age, vaccination status, risk status for severe outcome of infection, and frequency of participation, activity levels increased over time, coinciding with relaxation of COVID-19 control measures.
Bibliography:ObjectType-Article-1
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ISSN:2045-2322
2045-2322
DOI:10.1038/s41598-023-32031-7