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  Case Numbers Beyond Contact Tracing Capacity Are Endangering the Containment of COVID-19

Linden, M., Mohr, S. B., Dehning, J., Mohring, J., Meyer-Hermann, M., Pigeot, I., et al. (2020). Case Numbers Beyond Contact Tracing Capacity Are Endangering the Containment of COVID-19. Deutsches Ärzteblatt International, 117, 790-791. doi:10.3238/arztebl.2020.0790.

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Genre: Journal Article

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 Creators:
Linden, Matthias1, Author              
Mohr, Sebastian B.1, Author              
Dehning, Jonas1, Author              
Mohring, Jan, Author
Meyer-Hermann, Michael, Author
Pigeot, Iris, Author
Schöbel, Anita, Author
Priesemann, Viola1, Author              
Affiliations:
1Max Planck Research Group Neural Systems Theory, Max Planck Institute for Dynamics and Self-Organization, Max Planck Society, ou_2616694              

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 Abstract: Compared to the first wave, the second wave of SARS-CoV-2 manifests itself strongly in newly reported cases, but less so in death counts. However, already the increasing case numbers put the mitigation strategy at risk, because with case numbers being too high, local tipping points are crossed, which makes the control increasingly difficult, impedes the targeted protection of the vulnerable people, and leads to self-accelerating spread (1, 2). Importantly, a tipping point is reached when case numbers surpass the test-trace-and-isolate (TTI) capacity of the local health authority, thus potentially long before hospitals are overwhelmed (1): When TTI breaks down, testing and tracing can only be carried out insufficiently and with considerable delay, which leads to more and more missed chains of infections. Thereby increasingly more SARS-CoV-2 carriers remain unnoticed, and thus transmit the virus inadvertently—also to people at risk. As unaware carriers are strong drivers of the spread of SARS-CoV-2, the case numbers start to rise more quickly, and the spread spills over to the vulnerable population. In the following, we present evidence for a second wave and the crossing of this tipping point.

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Language(s): eng - English
 Dates: 2020-11-132020
 Publication Status: Published in print
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 Rev. Type: -
 Identifiers: DOI: 10.3238/arztebl.2020.0790
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Title: Deutsches Ärzteblatt International
Source Genre: Journal
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Pages: - Volume / Issue: 117 Sequence Number: - Start / End Page: 790 - 791 Identifier: ISSN: 1866-0452