Adherence and Association of Digital Proximity Tracing App Notifications With Earlier Time to Quarantine: Results From the Zurich SARS-CoV-2 Cohort Study.
Adherence and Association of Digital Proximity Tracing App Notifications With Earlier Time to Quarantine: Results From the Zurich SARS-CoV-2 Cohort Study.
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DOI:
10.3389/ijph.2021.1603992
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发表时间:
2021
影响因子:
4.6
通讯作者:
von Wyl V
中科院分区:
文献类型:
--
作者:
Ballouz T;Menges D;Aschmann HE;Domenghino A;Fehr JS;Puhan MA;von Wyl V
Objectives: We aimed to evaluate the effectiveness of the SwissCovid digital proximity tracing (DPT) app in notifying exposed individuals and prompting them to quarantine earlier compared to individuals notified only by manual contact tracing (MCT). Methods: A population-based sample of cases and close contacts from the Zurich SARS-CoV-2 Cohort was surveyed regarding SwissCovid app use and SARS-CoV-2 exposure. We descriptively analyzed app adherence and effectiveness, and evaluated its effects on the time between exposure and quarantine among contacts using stratified multivariable time-to-event analyses. Results: We included 393 SARS-CoV-2 infected cases and 261 close contacts. 62% of cases reported using SwissCovid and among those, 88% received and uploaded a notification code. 71% of close contacts were app users, of which 38% received a warning. Non-household contacts notified by SwissCovid started quarantine 1 day earlier and were more likely to quarantine earlier than those not warned by the app (HR 1.53, 95% CI 1.15–2.03). Conclusion: These findings provide evidence that DPT may reach exposed contacts faster than MCT, with earlier quarantine and potential interruption of SARS-CoV-2 transmission chains.
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DOI:
10.15585/mmwr.mm6911e1
发表时间:
2020-03-20
期刊:
MMWR. Morbidity and mortality weekly report
影响因子:
--
作者:
Ng Y;Li Z;Chua YX;Chaw WL;Zhao Z;Er B;Pung R;Chiew CJ;Lye DC;Heng D;Lee VJ
通讯作者:
Lee VJ
影响因子:
5
作者:
von Wyl V
通讯作者:
von Wyl V
影响因子:
8.5
作者:
von Wyl V;Höglinger M;Sieber C;Kaufmann M;Moser A;Serra-Burriel M;Ballouz T;Menges D;Frei A;Puhan MA
通讯作者:
Puhan MA
影响因子:
64.8
作者:
Wymant, Chris;Ferretti, Luca;Fraser, Christophe
通讯作者:
Fraser, Christophe
影响因子:
2.9
作者:
Salathe, Marcel;Althaus, Christian L.;von Wyl, Viktor
通讯作者:
von Wyl, Viktor