Differences in social activity increase efficiency of contact tracing
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Differences in social activity increase efficiency of contact tracing. / Nielsen, Bjarke Frost; Sneppen, Kim; Simonsen, Lone; Mathiesen, Joachim.
I: European Physical Journal B, Bind 94, Nr. 10, 209, 02.10.2021.Publikation: Bidrag til tidsskrift › Tidsskriftartikel › Forskning › fagfællebedømt
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TY - JOUR
T1 - Differences in social activity increase efficiency of contact tracing
AU - Nielsen, Bjarke Frost
AU - Sneppen, Kim
AU - Simonsen, Lone
AU - Mathiesen, Joachim
PY - 2021/10/2
Y1 - 2021/10/2
N2 - Digital contact tracing has been suggested as an effective strategy for controlling an epidemic without severely limiting personal mobility. Here, we use smartphone proximity data to explore how social structure affects contact tracing of COVID-19. We model the spread of COVID-19 and find that the effectiveness of contact tracing depends strongly on social network structure and heterogeneous social activity. Contact tracing is shown to be remarkably effective in a workplace environment and the effectiveness depends strongly on the minimum duration of contact required to initiate quarantine. In a realistic social network, we find that forward contact tracing with immediate isolation can reduce an epidemic by more than 70%. In perspective, our findings highlight the necessity of incorporating social heterogeneity into models of mitigation strategies. Graphic abstract
AB - Digital contact tracing has been suggested as an effective strategy for controlling an epidemic without severely limiting personal mobility. Here, we use smartphone proximity data to explore how social structure affects contact tracing of COVID-19. We model the spread of COVID-19 and find that the effectiveness of contact tracing depends strongly on social network structure and heterogeneous social activity. Contact tracing is shown to be remarkably effective in a workplace environment and the effectiveness depends strongly on the minimum duration of contact required to initiate quarantine. In a realistic social network, we find that forward contact tracing with immediate isolation can reduce an epidemic by more than 70%. In perspective, our findings highlight the necessity of incorporating social heterogeneity into models of mitigation strategies. Graphic abstract
KW - NETWORK MODELS
KW - TRANSMISSION
KW - OUTBREAKS
U2 - 10.1140/epjb/s10051-021-00222-8
DO - 10.1140/epjb/s10051-021-00222-8
M3 - Journal article
C2 - 34690541
VL - 94
JO - European Physical Journal B. Condensed Matter and Complex Systems
JF - European Physical Journal B. Condensed Matter and Complex Systems
SN - 1434-6028
IS - 10
M1 - 209
ER -
ID: 282678650