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Assessment of the National Test Strategy on the Development of the COVID-19 Pandemic in Denmark

1
Department of Science and Environment, Roskilde University, 4000 Roskilde, Denmark
2
Ishøj Centrets Læger, 2635 Ishøj, Denmark
3
Department of Applied Mathematics and Computer Science, Technical University of Denmark, DK-2880 Kgs. Lyngby, Denmark
*
Author to whom correspondence should be addressed.
Academic Editor: Nicola Luigi Bragazzi
Epidemiologia 2021, 2(4), 540-552; https://doi.org/10.3390/epidemiologia2040037
Received: 17 September 2021 / Revised: 2 November 2021 / Accepted: 4 November 2021 / Published: 5 November 2021
During the COVID-19 pandemic, Denmark has pursued a mass testing strategy culminating in the testing of 12.167 individuals per 100,000 inhabitants per day during the spring of 2021. The strategy included free access to COVID-19 testing, and since 2021, compulsory documentation for negative tests or vaccination has been required for access to workplace, educational institutions, restaurants, and many other places. Testing and subsequent isolation if testing was positive were voluntary. The present study provides an analysis of whether testing frequency in Denmark showed any correlation to hospitalizations throughout the relevant stages of the pandemic. Mass testing was found not to correlate significantly with the number of hospitalizations during the pandemic. Interestingly, during the highest level of testing in spring 2021 the fraction of positive tests increased slightly; thus, the Danish mass testing strategy, at its best, failed to reduce the prevalence of COVID-19. Furthermore, the relationship between positives in antigen testing and in rt-PCR testing indicated that many patients were not tested early in their infection when the risk of transmission was at the highest. In conclusion, the Danish mass testing strategy for COVID-19 does not appear to have a detectable correlation to the number of hospitalizations due to COVID-19. View Full-Text
Keywords: COVID-19; mass testing; rt-PCR; antigen test; hospitalization; vaccination COVID-19; mass testing; rt-PCR; antigen test; hospitalization; vaccination
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MDPI and ACS Style

Busk, P.K.; Kristiansen, T.B.; Engsig-Karup, A. Assessment of the National Test Strategy on the Development of the COVID-19 Pandemic in Denmark. Epidemiologia 2021, 2, 540-552. https://doi.org/10.3390/epidemiologia2040037

AMA Style

Busk PK, Kristiansen TB, Engsig-Karup A. Assessment of the National Test Strategy on the Development of the COVID-19 Pandemic in Denmark. Epidemiologia. 2021; 2(4):540-552. https://doi.org/10.3390/epidemiologia2040037

Chicago/Turabian Style

Busk, Peter K., Thomas B. Kristiansen, and Allan Engsig-Karup. 2021. "Assessment of the National Test Strategy on the Development of the COVID-19 Pandemic in Denmark" Epidemiologia 2, no. 4: 540-552. https://doi.org/10.3390/epidemiologia2040037

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