Perception of a Tracing App During the Covid-19 Pandemic in Germany

Hannemann, Niels; Götz, Nina-Alexandra; Schmidt, Lisa; Hübner, Ursula; Babitsch, Birgit

doi:10.3233/shti210289

Cited by 1 publication

(1 citation statement)

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“…The coronavirus disease 2019 (COVID-19) pandemic has been the first in which digital contact tracing (DCT) tools have been widely deployed as part of several national responses, including in Australia, 1 , 2 China, 3 , 4 several states of the USA, 5 , 6 and multiple European countries including France, 7 Germany, 8 Ireland, 9 Italy, 10 the Netherlands, 11 Switzerland, 12 and the UK. 13 The ability to rapidly contact trace can assist in timely case identification, allowing for better case management and disease spread control by notifying individuals that they may be infected at an earlier stage.…”

Section: Introductionmentioning

confidence: 99%

Use of Bluetooth contact tracing technology to model COVID-19 quarantine policies in high-risk closed populations

et al. 2023

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Containment measures in high-risk closed settings, like migrant worker (MW) dormitories, are critical for mitigating emerging infectious disease outbreaks and protecting potentially vulnerable populations in outbreaks such as coronavirus disease 2019 (COVID-19). The direct impact of social distancing measures can be assessed through wearable contact tracing devices. Here, we developed an individual-based model using data collected through a Bluetooth wearable device that collected 33.6M and 52.8M contact events in two dormitories in Singapore, one apartment style and the other a barrack style, to assess the impact of measures to reduce the social contact of cases and their contacts. The simulation of highly detailed contact networks accounts for different infrastructural levels, including room, floor, block, and dormitory, and intensity in terms of being regular or transient. Via a branching process model, we then simulated outbreaks that matched the prevalence during the COVID-19 outbreak in the two dormitories and explored alternative scenarios for control. We found that strict isolation of all cases and quarantine of all contacts would lead to very low prevalence but that quarantining only regular contacts would lead to only marginally higher prevalence but substantially fewer total man-hours lost in quarantine. Reducing the density of contacts by 30% through the construction of additional dormitories was modelled to reduce the prevalence by 14 and 9% under smaller and larger outbreaks, respectively. Wearable contact tracing devices may be used not just for contact tracing efforts but also to inform alternative containment measures in high-risk closed settings.

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